Demonic Toughness
Prerequisite: Fiend Patron
You gain proficiency in CONSTITUTION saving throw, and you increase your maximum hit points by 1 point per level.
Piercing Gaze
Prerequisite: Archfey Patron
You have advantage on Intelligence (investigation) check to disbelieve illusion spells and gain proficiency in the perception skill.
Swiftness of the Fey
Prerequisite: Archfey Patron
Your speed increase by 10 feet, and you gain proficiency in the acrobatic skill.
Voidsense
Prerequisite: Great Old One Patron
You gain Blindsight up to 20 feet.
Mental Discipline
Prerequisite: Great Old One Patron
You gain advantage on your WISDOM saving throws.
Hideous Blow
Prerequisite: Eldritch Blast cantrip, Pact of the Blade feature
You can cast Eldritch Blast through your weapon. As an action, you cast the spell into your weapon. The spell stay in the weapon until you release it with a melee attack, or up to 1 minute. When you hit, the target take both your weapon damage and the Eldritch Blast damage. If you have multiple attacks, and more than one beam (level 5 and up) you can use one beam per attack. If you creates more beams than you have attacks per round, the extra beams are lost.
Spiderwalk
Prerequisite: 6th level
You can cast Spider Climb on yourself at will, without expending a spell slot or material components.
Swamp Witch
Prerequisite: 9th level
You can breath underwater indefinitely.
Creature from the Pit
Prerequisite: 7th level
You can cast Evard's Black Tentacules once using a spell slot. You can't do so again until you finish a long rest.
Warlock's Call
Prerequisite: 5th level
You can cast Misty Step on an ally, without expending a spell slot or material components. You can't do so again until you finish a short rest.
Baleful Utterance
Prerequisite: 3th level
You speak the words of of the Dark Speech, and hurt nearby creatures with your scream. You can cast Shatter once using a spell slot. You can't do so again until you finish a long rest.
Fell Mount
Prerequisite: 9th level
You can cast Phantom Steed, as a ritual, without expending a spell slot or material components.
Dark Lore
Prerequisite: Pact of the Tome feature
Your Book of Shadows is full of secrets, both magical and mundane. Choose two of your Intelligence based skill proficiencies. Your proficiency bonus is doubled for any ability check you make using either one of those skills. Also, you gain one Intelligence based skill proficiency, the Dark Lore bonus do not apply to this new skill.
Friends in Low Places
Prerequisite: 5th level
You can cast Spirit Guardians once using a spell slot. You can't do so again until you finish a long rest.
Baba Yaga's Hut
Prerequisite: 9th level
You can cast Leomund's Tiny Hut, as a ritual, without expending a spell slot or material components.
Evil Eye
Prerequisite: 5th level
You stare at a creature with crazy eyes and spook him. You can cast Vicious Mockery, at will, without expending a spell slot or material components.
Appendage
Prerequisite: 3th level
You grow a part of body, altering your appearance to help you fight in melee.
Archfey: your grow fangs and gain a bite attack, 1 piercing damage + 1d8 poison.
Fiend: your grow a pair of claws, 2 attacks, 1d4 slashing damage each.
Great Old One : you grow a tentacule, 1 attack, reach, 1d6 bludgeonning damage.
Festering Wounds
Prerequisite: 5th level, Appendage Invocation
When you use the appendage Invocation, the wounds you inflict are mix with necrotic energy, thus making them really hard to heal. When you hit with an attack using your Appendage Invocation, the target can't expended hit dice to regain hit points on his next short rest. Also, the next time he received magical healing, roll twice for the spell and use the lowest result.
Favor of the Queen
Prerequisite: 11th level, Archfey Patron, Pact of the Chain feature
In time of need, the queen of Fey answer your call and send you one of her servant to help you.
You can cast Conjure Fey once using your Mystic Arcanum spell slot. You can't do so again until you finish a long rest. If your concentration is broken, you do not lose control over the fey creature and it never become hostile toward you.
Open the gates of Hell
Prerequisite: 17th level, Fiend Patron, Pact of the Chain feature
You summon an infernal creature from Hell, calling it by name and pulling it directly from her home plane. You can cast Gate once using your Mystic Arcanum spell slot. You can't do so again until you finish a long rest.
Master of Puppets
Prerequisite: 11th level, Pact of the Chain feature
The duration of any of your conjuration spells is doubled. While you are concentrating on conjuration spell, you add your proficiency bonus to any Constitution saving throw made to maintain your concentration. Additionally you have advantage on these.
Frost Maiden
Prerequisite: 3th level
You can endure cold weather and chilling temperature with ease. You do not suffer from cold temperature and can stay warm at even -40 without winter gear. Ice is not slippery for you, no need for acrobatic checks and ice is not consider difficult terrain.
Danger Sense
Prerequisite: Great Old One Patron
Your mind is constanly on alert, you can't be surprise.
Sacrifice
By giving away part of your life force, you regain part of your magical power. You may regain a spell slot by sacrificing hit points to your patron. You must sacrifice 5 hit points per spell slot levels, to a maximum of 25 hit ponts for a 5th level slot. This damage can't be reduced or resisted. Everytime you use this invocation, your maximum number of hit points are reduced by half the hit points sacrifed. After you finish a long rest, you regain the lost hit points.
Ocus Pocus
Prerequisite: 5th level, Pact of the Chain feature
By using a mirror, a pool, a cauldron or a crystal ball, you may spy on the unwary. You can cast Clairvoyance once using a spell slot. You can't do so again until you finish a long rest.
Black Candle
Prerequisite: 9th level, Pact of the Chain feature
You have learn to create black candles, that let you see the unseen. The candle's magic activate when the candle is lit, which requires an action. It burns for 1 hours, but can be snuff early for later use. While lit, it sheds dim light in a 30 foot radius and act as a See Invisibility spell. After burning for 1 hours, the candle is destroyed. It takes one day to craft a new one.
Vile Secrets
Prerequisite: Pact of the Tome feature
Your patron grants you access to a wellspring of new powers. You can add 2 new spells to your list of known spells and one cantrip. The spells and the cantrip must come from the warlock spell list.
Blade Mastery
Prerequisite: 3th level, Pact of the Blade feature
Your Patron instill you with the fighting skills uses by the devil army. Select a fighting style from the following list: defense, dueling, great weapon master, two weapon fighting.
Nourishing Blade
Prerequisite: 9th level, Pact of the Blade feature
Once per turn, when you strike with your pact blade, you gain a number of temporary hit points equal to your CHARISMA modifier.
Legions of Hell
Prerequisite: 7th level, Pact of the Chain feature
Whenever you cast a conjure spell, you call additionnal creatures as if you cast the spell using a higher level spell slot.
Dark Champion
Prerequisite: 7th level
Your patron noticed you, and gifted you with additionnal power. You can use one of your otherworldly patron feature once more per rest.
Devil's Child
Prerequisite: Tiefling
As a half devil half human child, you have what it takes to become a potent warlock: an infernal legacy. When you cast your hellish rebuke spell, you use your warlock level to determine your casting level, unless your infernal legacy level is higher.
So a 7th level tiefling warlock will cast his hellish rebuke spell as a 4th level spell (instead of a 2nd level spell)
Also, you can now cast hellish rebuke once per short rest, instead of once per long rest.
Feytouched
Prerequisite: Elf
No matter what they do, elves will always be close to their roots; beautiful, magical, faerie like. When they take that invocation, they may choose to learn one spell from the Archfey Expended Spells. Furthermore, they become more in touch with the Feywild, and gain the Eladrin, feystep ability (see DMG page 286)
**Alright, i updated some of the invocations base on comments you guys provided. Hope i get it right this time.
Since i was in a good mood, i also add a few...
Comments are, still, welcome...
Prerequisite: Fiend Patron
You gain proficiency in CONSTITUTION saving throw, and you increase your maximum hit points by 1 point per level.
Piercing Gaze
Prerequisite: Archfey Patron
You have advantage on Intelligence (investigation) check to disbelieve illusion spells and gain proficiency in the perception skill.
Swiftness of the Fey
Prerequisite: Archfey Patron
Your speed increase by 10 feet, and you gain proficiency in the acrobatic skill.
Voidsense
Prerequisite: Great Old One Patron
You gain Blindsight up to 20 feet.
Mental Discipline
Prerequisite: Great Old One Patron
You gain advantage on your WISDOM saving throws.
Hideous Blow
Prerequisite: Eldritch Blast cantrip, Pact of the Blade feature
You can cast Eldritch Blast through your weapon. As an action, you cast the spell into your weapon. The spell stay in the weapon until you release it with a melee attack, or up to 1 minute. When you hit, the target take both your weapon damage and the Eldritch Blast damage. If you have multiple attacks, and more than one beam (level 5 and up) you can use one beam per attack. If you creates more beams than you have attacks per round, the extra beams are lost.
Spiderwalk
Prerequisite: 6th level
You can cast Spider Climb on yourself at will, without expending a spell slot or material components.
Swamp Witch
Prerequisite: 9th level
You can breath underwater indefinitely.
Creature from the Pit
Prerequisite: 7th level
You can cast Evard's Black Tentacules once using a spell slot. You can't do so again until you finish a long rest.
Warlock's Call
Prerequisite: 5th level
You can cast Misty Step on an ally, without expending a spell slot or material components. You can't do so again until you finish a short rest.
Baleful Utterance
Prerequisite: 3th level
You speak the words of of the Dark Speech, and hurt nearby creatures with your scream. You can cast Shatter once using a spell slot. You can't do so again until you finish a long rest.
Fell Mount
Prerequisite: 9th level
You can cast Phantom Steed, as a ritual, without expending a spell slot or material components.
Dark Lore
Prerequisite: Pact of the Tome feature
Your Book of Shadows is full of secrets, both magical and mundane. Choose two of your Intelligence based skill proficiencies. Your proficiency bonus is doubled for any ability check you make using either one of those skills. Also, you gain one Intelligence based skill proficiency, the Dark Lore bonus do not apply to this new skill.
Friends in Low Places
Prerequisite: 5th level
You can cast Spirit Guardians once using a spell slot. You can't do so again until you finish a long rest.
Baba Yaga's Hut
Prerequisite: 9th level
You can cast Leomund's Tiny Hut, as a ritual, without expending a spell slot or material components.
Evil Eye
Prerequisite: 5th level
You stare at a creature with crazy eyes and spook him. You can cast Vicious Mockery, at will, without expending a spell slot or material components.
Appendage
Prerequisite: 3th level
You grow a part of body, altering your appearance to help you fight in melee.
Archfey: your grow fangs and gain a bite attack, 1 piercing damage + 1d8 poison.
Fiend: your grow a pair of claws, 2 attacks, 1d4 slashing damage each.
Great Old One : you grow a tentacule, 1 attack, reach, 1d6 bludgeonning damage.
Festering Wounds
Prerequisite: 5th level, Appendage Invocation
When you use the appendage Invocation, the wounds you inflict are mix with necrotic energy, thus making them really hard to heal. When you hit with an attack using your Appendage Invocation, the target can't expended hit dice to regain hit points on his next short rest. Also, the next time he received magical healing, roll twice for the spell and use the lowest result.
Favor of the Queen
Prerequisite: 11th level, Archfey Patron, Pact of the Chain feature
In time of need, the queen of Fey answer your call and send you one of her servant to help you.
You can cast Conjure Fey once using your Mystic Arcanum spell slot. You can't do so again until you finish a long rest. If your concentration is broken, you do not lose control over the fey creature and it never become hostile toward you.
Open the gates of Hell
Prerequisite: 17th level, Fiend Patron, Pact of the Chain feature
You summon an infernal creature from Hell, calling it by name and pulling it directly from her home plane. You can cast Gate once using your Mystic Arcanum spell slot. You can't do so again until you finish a long rest.
Master of Puppets
Prerequisite: 11th level, Pact of the Chain feature
The duration of any of your conjuration spells is doubled. While you are concentrating on conjuration spell, you add your proficiency bonus to any Constitution saving throw made to maintain your concentration. Additionally you have advantage on these.
Frost Maiden
Prerequisite: 3th level
You can endure cold weather and chilling temperature with ease. You do not suffer from cold temperature and can stay warm at even -40 without winter gear. Ice is not slippery for you, no need for acrobatic checks and ice is not consider difficult terrain.
Danger Sense
Prerequisite: Great Old One Patron
Your mind is constanly on alert, you can't be surprise.
Sacrifice
By giving away part of your life force, you regain part of your magical power. You may regain a spell slot by sacrificing hit points to your patron. You must sacrifice 5 hit points per spell slot levels, to a maximum of 25 hit ponts for a 5th level slot. This damage can't be reduced or resisted. Everytime you use this invocation, your maximum number of hit points are reduced by half the hit points sacrifed. After you finish a long rest, you regain the lost hit points.
Ocus Pocus
Prerequisite: 5th level, Pact of the Chain feature
By using a mirror, a pool, a cauldron or a crystal ball, you may spy on the unwary. You can cast Clairvoyance once using a spell slot. You can't do so again until you finish a long rest.
Black Candle
Prerequisite: 9th level, Pact of the Chain feature
You have learn to create black candles, that let you see the unseen. The candle's magic activate when the candle is lit, which requires an action. It burns for 1 hours, but can be snuff early for later use. While lit, it sheds dim light in a 30 foot radius and act as a See Invisibility spell. After burning for 1 hours, the candle is destroyed. It takes one day to craft a new one.
Vile Secrets
Prerequisite: Pact of the Tome feature
Your patron grants you access to a wellspring of new powers. You can add 2 new spells to your list of known spells and one cantrip. The spells and the cantrip must come from the warlock spell list.
Blade Mastery
Prerequisite: 3th level, Pact of the Blade feature
Your Patron instill you with the fighting skills uses by the devil army. Select a fighting style from the following list: defense, dueling, great weapon master, two weapon fighting.
Nourishing Blade
Prerequisite: 9th level, Pact of the Blade feature
Once per turn, when you strike with your pact blade, you gain a number of temporary hit points equal to your CHARISMA modifier.
Legions of Hell
Prerequisite: 7th level, Pact of the Chain feature
Whenever you cast a conjure spell, you call additionnal creatures as if you cast the spell using a higher level spell slot.
Dark Champion
Prerequisite: 7th level
Your patron noticed you, and gifted you with additionnal power. You can use one of your otherworldly patron feature once more per rest.
Devil's Child
Prerequisite: Tiefling
As a half devil half human child, you have what it takes to become a potent warlock: an infernal legacy. When you cast your hellish rebuke spell, you use your warlock level to determine your casting level, unless your infernal legacy level is higher.
So a 7th level tiefling warlock will cast his hellish rebuke spell as a 4th level spell (instead of a 2nd level spell)
Also, you can now cast hellish rebuke once per short rest, instead of once per long rest.
Feytouched
Prerequisite: Elf
No matter what they do, elves will always be close to their roots; beautiful, magical, faerie like. When they take that invocation, they may choose to learn one spell from the Archfey Expended Spells. Furthermore, they become more in touch with the Feywild, and gain the Eladrin, feystep ability (see DMG page 286)
**Alright, i updated some of the invocations base on comments you guys provided. Hope i get it right this time.
Since i was in a good mood, i also add a few...
Comments are, still, welcome...
