D&D 5E 5e Updates: Monstrous Compendium

[dave2008]

Primal Air Elemental
Elite Gargantuan elemental, neutral

Armor Class 18
Hit Points 682 ((22d20 + 110)x2; bloodied 341)
Speed 0 ft., fly 180 ft. (hover)

STR	DEX	CON	INT	WIS	CHA
20 (+5)	26 (+8)	20 (+5)	14 (+2)	16 (+3)	14 (+2)

Savings Throws Dex +14, Con +11, Wis +9, Cha +8
Skills Acrobatics +14, Perception +9, Stealth +14
Damage Resistances budgeoning, piercing, and slashing that is nonmagical.
Damage Immunities lightning, poison, thunder
Condition Immunities exhaustion, grappled, paralyzed, petrified, poisoned, prone, restrained, unconscious
Senses darkvision 180 ft., passive Perception 19
Languages Auran, Primordial
Challenge 18 (40,000 elite XP) Proficiency Bonus +6

Air Form. The elemental can enter a hostile creature’s space and stop there. The elemental can move through a space as narrow as 1 inch wide without squeezing if air can pass through the space.

Colossal. The elemental’s space is 30 feet by 30 feet.

Elemental Attacks. The primal elemental’s attacks are treated as magical weapons.

Elemental Resistance (3/short rest). If the elemental fails a saving throw, it can use a reaction to re-roll the saving throw.

Magic Resistance. The elemental has advantage on saving throws against spells and magical effects and any creature that makes a spell attack against the elemental has disadvantage on the attack roll.

Primal Storm (Elite Trait, recharges after a short or long rest). If the elemental bloodied, all conditions and effects the elemental is suffering end for it, all of its abilities recharge, it can use its elite actions, and it immediately uses its Storm Charge elite action.

Untethered. The elemental has advantage on effects that would inflict the incapacitated condition.

ACTIONS
Multiattack. The elemental makes three attacks, any combination of slam and wind lance attacks.

Slam. Melee Weapon Attack: +14 to hit, reach 20 ft., one target. Hit: 30 (5d8 + 8) bludgeoning damage,

Wind Lance. Ranged Weapon Attack: +14 to hit, range 180 ft., one target. Hit: 25 (5d6+8) piercing damage and the target must succeed on a DC 21 Strength saving throw or be pushed 15 feet.

Whirlwind (Recharge 4-6). The elemental creates a storm filled with swirling wind and debris within a 20-foot radius of itself. Any creature in the area must make a DC 20 Strength saving throw taking 26 (5d8 +4) bludgeoning and 13 (3d8) piercing damage and is flung up 50 feet away from the elemental in a random direction and knocked prone. If a thrown target strikes an object, such as a wall or floor, the target takes 3 (1d6) bludgeoning damage for every 10 feet it was thrown. If the target is thrown at another creature, that creature must succeed on a DC 18 Dexterity saving throw or take the same damage and be knocked prone.

If the saving throw is successful, the target takes half the bludgeoning damage and isn't flung away or knocked prone.

Innate Spellcasting. The elemental’s spell casting ability is Wisdom (spell save DC 17, +7 to hit with attack spells). It can innately cast the following spells, requiring no components:

At will: gust of wind, lightning bolt, shocking grasp (17th level)
3/day each: storm sphere, thunder wave (7th level), control weather (wind only),
1/day each: storm of vengeance, wish (must be air or weather related)

Summon Elementals (1/day). The elemental summons 2d8 air elementals or 1d8 elder air elementals or 1 ancient air elemental to unoccupied spaces within 180 feet of the elemental.

REACTIONS
Wind Buffet. The elemental adds 5 to its AC against one ranged attack that would hit it. To do so, the elemental must see the attacker.

LEGENDARY ACTIONS
The elemental can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The elemental can use any unspent legendary actions at the end of each round and it regains spent legendary actions at the start of its turn.

Windy Escape. The elemental can move up to half it speed without provoking opportunity attacks during this movement
Attack (Cost 2 Actions). The elemental can make a slam or wind lance attack.
Quick Casting (Cost 2 Actions). The elemental can cast an at-will spell.

ELITE ACTIONS
If the elemental's elite trait is active, it can use the options below as legendary actions for 1 hour after using Primal Storm.

Static Electricity (Costs 2 Actions). Until the end of its next turn, when the elemental hits a target with a slam attack, the target takes an additional 18 (4d8) lightning damage and the target cannot take reactions until the start of its next turn.
Storm Charge (Costs 3 Actions). The elemental's whirlwind ability recharges and the elemental immediately uses it.

 

[dave2008]

What CR would you give the Shard of Evil? More powerful than Tharizdun?

I wouldn't give it any CR, it is not a "monster." If I wanted to give it game stats I would make it a trap / hazard.

 

[imeannoharm]

No, they would discorporate normally. That is something I want to clarify in the deity traits. You can only kill a god under special circumstances.

What circumstances are those?

 

[dave2008]

What circumstances are those?

Like 4e, it is left up to the DM However, the typical idea is you need to kill it on its home plan. Since there is often an idea the gods, demons, devils, etc. are stronger in their home plan am think that maybe they get an extra mythic stage in their home plan.

 

[imeannoharm]

Like 4e, it is left up to the DM However, the typical idea is you need to kill it on its home plan. Since there is often an idea the gods, demons, devils, etc. are stronger in their home plan am think that maybe they get an extra mythic stage in their home plan.

Good plan.

 

[dave2008]

Primal Earth Elemental
Elite Gargantuan elemental, neutral

Armor Class 20 (natural armor)
Hit Points 814 ((22d20 + 176)x2; bloodied 407)
Speed 60 ft., burrow 60 ft.

STR	DEX	CON	INT	WIS	CHA
26 (+8)	10 (+0)	26 (+8)	13 (+1)	16 (+3)	11 (+0)

Savings Throws Str +14, Dex +6, Con +14, Wis +9
Skills Acrobatics +14, Perception +9, Stealth +14
Damage Resistances cold, fire, necrotic; bludgeoning, piercing, and slashing that is nonmagical
Damage Immunities poison
Condition Immunities exhaustion, paralyzed, petrified, poisoned, unconscious
Senses darkvision 120 ft., tremorsense 120 ft., passive Perception 13
Languages Terran, Primordial
Challenge 19 (44,000 elite XP) Proficiency Bonus +6

Earth Glide. The elemental can burrow through nonmagical, unworked earth and stone. While doing so, the elemental doesn’t disturb the material it moves through.

Colossal. The elemental’s space is 30 feet by 30 feet.

Elemental Attacks. The primal elemental’s attacks are treated as magical weapons.

Elemental Resistance (3/short rest). If the elemental fails a saving throw, it can use a reaction to re-roll the saving throw.

Magic Resistance. The elemental has advantage on saving throws against spells and magical effects and any creature that makes a spell attack against the elemental has disadvantage on the attack roll.

Earthen Fortitude (Elite Trait, recharges after a short or long rest). If the elemental bloodied, all conditions and effects the elemental is suffering end for it, all of its abilities recharge, and if can use its elite actions.

Rock Skin. The elemental is immune to all damage, except psychic, unless the attack or effect inflicts 10 or more hit points of damage, in which case it takes damage as normal.

Siege Monster. The primal elemental deals double damage to objects and structures.

ACTIONS
Multiattack. The elemental makes two slam attacks.

Slam. Melee Weapon Attack: +14 to hit, reach 20 ft., one target. Hit: 35 (5d10 + 8) bludgeoning damage and the target must make a DC 20 Strength saving throw or be knocked prone or pushed 20 feet, or, if the target is Large or smaller, grappled, the elemental’s choice.

Rock. Ranged Weapon Attack: +14 to hit, range 180/ 360 ft., one target. Hit: 41 (6d10 +8) bludgeoning damage and the target must make a DC 20 Strength saving throw or be knocked prone. If there are no rocks in the area the elemental can use a piece of its body, taking 14 (4d6) damage.

Rampage (Recharge 4-6). The elemental moves up to it speed and can enter the space of Medium or smaller creatures. The first time it enters a creature’s space, or comes within reach of a creature during the move, it can make a slam attack against the target.

Innate Spellcasting. The elemental’s spell casting ability is Wisdom (spell save DC 17, +9 to hit with attack spells). It can innately cast the following spells, requiring no components:

At will: earth tremor, earthbind, earthen grasp,mold earth
3/day each: erupting earth, move earth
1/day each: bones of the earth, earthquake

Summon Elementals (1/day). The elemental summons 2d8 earth elementals or 1d8 elder earth elementals or 1 ancient earth elemental to unoccupied spaces within 180 feet of the elemental.

LEGENDARY ACTIONS
The elemental can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The elemental can use any unspent legendary actions at the end of each round and it regains spent legendary actions at the start of its turn.

Move. The elemental moves up to half its speed.
Crush (Cost 2 Actions) The elemental squeezes on creature it is grappling. The target must make a DC22 Strength saving throw, taking 27 (5d10) bludgeoning damage on a failed save, or half as much damage on a successful one.
Quick Casting (Cost 3 Actions). The elemental can cast an at-will spell.

ELITE ACTIONS
If the elemental's elite trait is active, it can use the options below as legendary actions for 1 hour after using Earthen Fortitude.

Tremor. The elemental stomps its foot and creates a massive tremor in a 90-foot radius around itself. Each creature in the area must make a DC 22 Dexterity saving throw or fall prone. In addition, the area becomes difficult terrain, except for creatures with the Earth Glide trait.
Attack (Cost 2 Actions). The elemental can make a slam attack.
One with the Earth (Cost 2 Actions). If the elemental is standing on or in earth or stone, it regains 50 hit points.
Smash (Cost 3 Actions). The elemental slams both of its fists at a point on the ground within 15 feet of it. Any creature in a 5-foot-radius, 20-foot-high cylinder centered on this point must succeed on a DC 22 Dexterity saving throw or take 63 (10d10 + 8) bludgeoning damage and fall prone. Additionally, each creature within a 20-foot radius of the point, except the elemental, must make a DC 22 Constitution saving throw, taking 18 (4d8) force damage on a failed save, and have as much damage on successful one.

 

[dave2008]

Primal Fire Elemental
Elite Gargantuan elemental, neutral

Armor Class 18
Hit Points 682 ((22d20 + 110)x2; bloodied 341)
Speed 90 ft.

STR	DEX	CON	INT	WIS	CHA
16 (+3)	22 (+6)	20 (+5)	12 (+1)	16 (+3)	18 (+6)

Savings Throws Dex +12, Int +7, Wis +9, Cha +12
Skills Intimidation +12, Perception +9, Persuasion +12
Damage Resistances radiant; bludgeoning, piercing, and slashing that is nonmagical.
Damage Immunities fire, poison
Condition Immunities exhaustion, grappled, paralyzed, petrified, poisoned, prone, restrained, unconscious
Senses darkvision 180 ft., passive Perception 19
Languages Ignan, Primordial
Challenge 18 (40,000 elite XP) Proficiency Bonus +6

Colossal. The elemental’s space is 30 feet by 30 feet.

Consume. If the elemental is hit by an attack or effect that does fire damage, the elemental takes no damage and instead gains hit points equal to the amount of fire damage. This trait does not apply to attacks and effects created by the elemental.

Elemental Attacks. The primal elemental’s attacks are treated as magical weapons.

Elemental Resistance (2/short rest). If the elemental fails a saving throw, it can use a reaction to re-roll the saving throw.

Fire Form. The elemental can move through a space as narrow as 1 inch wide without squeezing. A creature that starts its turn within 20 feet of the elemental or hits it with a melee attack while within 20 feet of it takes 22 (4d10) fire damage. In addition, the elemental can enter a hostile creature's space and stop there. The first time it enters a creature's space on a turn, that creature takes 22 (4d10) fire damage and catches fire; until someone takes an action to douse the fire, the creature takes 22 (4d10) fire damage at the start of each of its turns. Additionally, the elemental sheds bright light in a 120-foot radius and dim light in an additional 120 feet.

Magic Resistance. The elemental has advantage on saving throws against spells and magical effects and any creature that makes a spell attack against the elemental has disadvantage on the attack roll.

Primal Fire (Elite Trait, recharges after a short or long rest). If the elemental is bloodied, all conditions and effects the elemental is suffering end for it, all of its abilities recharge, it can use its elite actions, and it immediately uses its fire bane elite action.

Untethered. The elemental has advantage on effects that would inflict the incapacitated condition.

Water Susceptibility. For every 10 feet the elemental moves in water, or for every two gallons of water splashed on it, it takes 1 cold damage.

ACTIONS
Multiattack. The elemental makes two burning touch or flame spear attacks.

Burning Touch. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 22 (5d6 + 5) fire damage. If the target is a creature or a flammable object, it ignites. Until a creature takes an action to douse the fire, the target takes 22 (4d10) fire damage at the start of each of its turns. If the target is hit with two burning touch attacks on the same turn, the target must succeed on a DC 16 Constitution saving throw or lose any resistance to fire damage for the next 12 hours,

Flame Spear. Ranged Spell Attack: +10 to hit, range 240 ft., one target. Hit: 27 (5d8 +5) fire damage.

Flame Spear Volley (Recharge 5-6). The elemental makes a flame spear attack on all targets within 240 feet of it.

Innate Spellcasting. The elemental’s spell casting ability is Charisma (spell save DC 20, +8 to hit with attack spells). It can innately cast the following spells, requiring no material components:

At will: burning hands (3rd level), control flames, fire bolt (17th level), produce flame
3/day each: fireball, wall of fire
1/day each: delayed blast fireball, fire storm,

Summon Elementals (1/day). The elemental summons 2d8 fire elementals or 1d8 elder fire elementals or 1 ancient fire elemental to unoccupied spaces within 180 feet of the elemental.

REACTIONS
Flame Shield. The elemental adds 5 to its AC against one attack that would hit it. To do so, the elemental must see the attacker.

LEGENDARY ACTIONS
The elemental can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The elemental can use any unspent legendary actions at the end of each round and it regains spent legendary actions at the start of its turn.

Move. The elemental moves up to half its speed.
Attack (Cost 2 Actions). The elemental can make a burning touch or flame spear attack.
Quick Casting (Cost 2 Actions). The elemental can cast an at-will spell.

ELITE ACTIONS
If the elemental's elite trait is active, it can use the options below as legendary actions for 1 hour after using Primal Storm.

Fire Bane (Costs 3 Actions). The elemental releases a wave of magical heat that sweeps out in a 90-foot radius from it. Each creature of the elemental's choice in the area must make a DC 20 Constitution saving throw. On a failure, the target suffers two levels of exhaustion and loses any resistance or immunity to fire damage for 1 hour. On a success, the target loses any resistance to fire damage for 1 minute.
Cone of Fire (Costs 3 Actions, Recharge 5-6). The elemental ejects fire in a 120-foot cone. Each creature in the cone must make a DC 19 Dexterity saving throw, taking 52 (8d12) fire damage on a failed save, or half as much damage on a successful one.

 

[imeannoharm]

Primal Fire Elemental
Gargantuan elemental, neutral
View attachment 125711
Armor Class 18
Hit Points 341 (22d20 + 110)
Speed 0 ft., fly 180 ft. (hover)
View attachment 125710

STR	DEX	CON	INT	WIS	CHA
16 (+3)	22 (+6)	20 (+5)	12 (+1)	16 (+3)	18 (+6)

View attachment 125709
Savings Throws Dex +12, Int +7, Wis +9, Cha +12
Skills Intimidation +12, Perception +9, Persuasion +12
Damage Resistances radiant; bludgeoning, piercing, and slashing that is nonmagical.
Damage Immunities fire, poison
Condition Immunities exhaustion, grappled, paralyzed, petrified, poisoned, prone, restrained, unconscious
Senses darkvision 180 ft., passive Perception 19
Languages Ignan, Primordial
Challenge 18 (20,000 XP)
View attachment 125708
Colossal. The elemental’s space is 30 feet by 30 feet.

Consume. If the elemental is hit by an attack or effect that does fire damage, the elemental takes no damage and instead gains hit points equal to the amount of fire damage.

Elemental Attacks. The primal elemental’s attacks are treated as magical weapons.

Elemental Resistance (2/short rest). If the elemental fails a saving throw, it can use a reaction to re-roll the saving throw.

Fire Form. The elemental can move through a space as narrow as 1 inch wide without squeezing. A creature that starts its turn within 20 feet of the elemental or hits it with a melee attack while within 20 feet of it takes 22 (4d10) fire damage. In addition, the elemental can enter a hostile creature's space and stop there. The first time it enters a creature's space on a turn, that creature takes 22 (4d10) fire damage and catches fire; until someone takes an action to douse the fire, the creature takes 22 (4d10) fire damage at the start of each of its turns. Additionally, the elemental sheds bright light in a 120-foot radius and dim light in an additional 120 feet.

Innate Spellcasting. The elemental’s spell casting ability is Charisma (spell save DC 20, +8 to hit with attack spells). It can innately cast the following spells, requiring no material components:

At will: burning hands (3rd level), control flames, fire bolt (17th level), produce flame
3/day each: fireball, wall of fire
1/day each: delayed blast fireball, fire storm,

Magic Resistance. The elemental has advantage on saving throws against spells and magical effects and any creature that makes a spell attack against the elemental has disadvantage on the attack roll.

Primal Fire (Mythic Trait, recharges after a short or long rest). If the elemental is reduced to 0 hit points, it doesn’t die or fall unconscious. Instead, all conditions and effects the elemental is suffering end for it, it regains 341 hit points, all of its abilities recharge, and it immediately uses its Fiery Teleport mythic action.

Untethered. The elemental has advantage on effects that would inflict the incapacitated condition.

Water Susceptibility. For every 10 feet the elemental moves in water, or for every two gallons of water splashed on it, it takes 1 cold damage.

ACTIONS
Multiattack. The elemental makes two burning touch or flame spear attacks.

Burning Touch. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 22 (5d6 + 5) fire damage. If the target is a creature or a flammable object, it ignites. Until a creature takes an action to douse the fire, the target takes 22 (4d10) fire damage at the start of each of its turns. If the target is hit with two burning touch attacks on the same turn, the target must succeed on a DC 16 Constitution saving throw or lose any resistance to fire damage for the next 12 hours,

Flame Spear. Ranged Spell Attack: +10 to hit, range 240 ft., one target. Hit: 27 (5d8 +5) fire damage.

Flame Spear Volley (Recharge 5-6). The elemental makes a flame spear attack on all targets within 240 feet of it.

Summon Elementals (1/day). The elemental summons 2d8 fire elementals or 1d8 elder fire elementals or 1 ancient fire elemental to unoccupied spaces within 180 feet of the elemental.

REACTIONS
Flame Shield. The elemental adds 5 to its AC against one attack that would hit it. To do so, the elemental must see the attacker.

LEGENDARY ACTIONS
The elemental can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The elemental can use any unspent legendary actions at the end of each round and it regains spent legendary actions at the start of its turn.

Move. The elemental moves up to half its speed.
Attack (Cost 2 Actions). The elemental can make a burning touch or flame spear attack.
Quick Casting (Cost 2 Actions). The elemental can cast an at-will spell.

MYTHIC ACTIONS
If the elemental's mythic trait is active, it can use the options below as legendary actions for 1 hour after using Primal Storm.

Fiery Teleport (Costs 2 Actions). ???

---

The Primal Elemental as a Mythic Encounter
The primal elemental is a potent threat even to high-level characters, but you can increase the challenge by using the Primal Fire trait. When this happens, the primal elemental heals its wounds, shakes off any debilitating effects, recharges its abilities, and then it can choose one of its mythic actions when it uses a legendary action.

Read or paraphrase the following text when the elemental uses its Primal Fire trait:

Future descriptive text goes here

Fighting the primal elemental as a mythic encounter is equivalent to taking on two CR 18 creatures in one encounter. Award a party 40,000 XP for defeating the primal elemental after it uses Primal Fire.

Maybe at the next stage there can be "master" elementals.
Stealing from the Creature Catalog:

 

[dave2008]

Maybe at the next stage there can be "master" elementals.
Stealing from the Creature Catalog:
View attachment 125714

Absolutely, but they are originate way before the creature catalog:

Though I won't be doing them anytime soon. I am just converting stuff I have already done right now

 

[dave2008]

Primal Water Elemental
Elite Gargantuan elemental, neutral

Armor Class 15
Hit Points 702 ((22d20 + 120)x2; bloodied 351)
Speed 60 ft., swim 140 ft. Proficiency Bonus +6

STR	DEX	CON	INT	WIS	CHA
24 (+7)	20 (+5)	22 (+6)	16 (+3)	18 (+4)	15 (+2)

Savings Throws Str +13, Dex +11, Con +12, Wis +9
Skills Athletics +13, Acrobatics +17, Stealth +11
Damage Resistances acid; bludgeoning, piercing, and slashing that is nonmagical.
Damage Immunities poison
Condition Immunities exhaustion, grappled, incapacitated, paralyzed, petrified, poisoned, prone, restrained, unconscious
Senses darkvision 180 ft., passive Perception 13
Languages Aquan, Primordial
Challenge 18 (40,000 elite XP)

Colossal. The elemental's space is 30 feet by 30 feet,

Elemental Attacks. The primal elemental’s attacks are treated as magical weapons.

Elemental Resistance (2/short rest). If the elemental fails a saving throw, it can use a reaction to re-roll the saving throw.

Freeze. If the elemental takes cold damage, it partially freezes; its speed is reduced by 20 feet until the end of its next turn.

Water Form. The elemental can enter a hostile creature's space and stop there. It can move through a space as narrow as 1 inch wide without squeezing.

Magic Resistance. The elemental has advantage on saving throws against spells and magical effects and any creature that makes a spell attack against the elemental has disadvantage on the attack roll.
.
Primal Wave (Elite Trait, recharges after a short or long rest). If the elemental is bloodied, all conditions and effects the elemental is suffering end for it, all of its abilities recharge, it can use its elite actions, and it immediately uses its Slippery Escape elite action.

ACTIONS
Multiattack. The elemental makes three attacks, any combination of slam and water jet attacks.

Slam. Melee Weapon Attack: +13 to hit, reach 20 ft., one target. Hit: 29 (5d8 + 7) bludgeoning damage and if the target is Huge or smaller it must make a DC 21 Strength saving throw or be grappled. At the end of the grappled creature's turn, it suffers the effects of the elemental's whelm attack until the grapple ends (escape DC 21).

Water Jet. Ranged Weapon Attack: +9 to hit, range 90 ft., one target. Hit: 24 (5d6+7) bludgeoning damage and the target must succeed on a DC 17 Strength saving throw or be pushed 20 feet.

Whelm (Recharge 4–6). Each creature in the elemental's space must make a DC 21 Strength saving throw. On a failure, a target takes 29 (5d8 + 7) bludgeoning damage. If it is Gargantuan or smaller, it is also grappled (escape DC 21). Until this grapple ends, the target is restrained and unable to breathe unless it can breathe water. If the saving throw is successful, the target is pushed out of the elemental's space.

The elemental can grapple one Gargantuan creature or two Huge creatures or four Large creatures or up to eight Medium or smaller creatures at one time. At the start of each of the elemental's turns, each target grappled by it takes 29 (5d8 + 6) bludgeoning damage. A creature within 5 feet of the elemental can pull a creature or object out of it by taking an action to make a DC 17 Strength and succeeding.

Innate Spellcasting. The elemental’s spell casting ability is Wisdom (spell save DC 18, +10 to hit with attack spells). It can innately cast the following spells, requiring no components:

At will: control water, create or destroy water, tidal wave
3/day each: wall of water, watery sphere
1/day each: tsunami

Summon Elementals (1/day). The elemental summons 2d8 water elementals or 1d8 elder water elementals or 1 ancient water elemental to unoccupied spaces within 180 feet of the elemental.

LEGENDARY ACTIONS
The elemental can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The elemental can use any unspent legendary actions at the end of each round and it regains spent legendary actions at the start of its turn.

Slippery Escape. The elemental can move up to half it speed without provoking opportunity attacks during this movement.
Attack (Cost 2 Actions). The elemental can make a slam or water jet attack.
Fling (Cost 2 Actions). The elemental throws a Large or smaller creature it is grappling up to 50 feet in a direction of its choosing. The target must make a DC 21 Dexterity saving throw or take 3 (1d6) bludgeoning damage for every 10 feet it was thrown and knocked prone on a failure, or half as much damage one a success. If the target is thrown at another creature, that creature must succeed on a DC 21 Dexterity saving throw or take the same damage and be knocked prone.
Quick Casting (Cost 2 Actions). The elemental can cast an at-will spell.

MYTHIC ACTIONS
If the elemental's elite trait is active, it can use the options below as legendary actions for 1 hour after using Primal Wave.

Tidal Wave. The elemental cast the spell tidal wave.
Flood (Costs 3 Actions). The elemental increases its size to 90 feet by 90 until the end of its next turn and its whelm action recharges.