Yes, I am a sick bastard.
Katrun, the Black Terror (Black Dragon Great Wyrm + Multiheaded (7 Extra) + Half-Breed Blue Dragon + Gelatinous + Pseudonatural + Psionic)
Gargantuan Outsider
Hit Dice: 51d12+1063 (1251)
Initiative: +2 (-2 Dex, +4 Improved Initiative)
Speed: 15 Ft. swim 30 ft.
AC: 45 (-4 Size, -2 Dex, +41 Natural, +4 Deflection)
Attacks: 8 Bite +61 melee, 2 Claw +61 Melee, 2 Wings +61 melee, Tail Slap +61,
Slam +61;
Crush Melee; Tail Sweep Melee
Damage: Bite 4d6+14+2d4 Acid, Claws 2d8+7+2d4 Acid, Wings 2d6+7+2d4 Acid,
Tail Slap 2d8+21+2d4 Acid, Slam 2d8+14+2d4 Acid;
Crush 4d6+21+2d4 Acid (DC: 36); Tail Sweep 2d6+21+2d4 Acid (DC: 36)
Face/Reach: 20ft By 40ft/15ft
Special Attacks: Breath Weapon, Create/Destroy Water, Spell-Like Abilities, Spells, True Strike, Psionic
Special Qualities: Alternate form, Water Breathing, Immunities, Frightful Presence, Sound Imitation, SR: 31, DR: 20/+3, Corrupt Water, Charm Reptiles, Plant Growth, Power Resistance: 25, Telepathy
Saves: Fort: +38, Ref: +18, Will: +24
Abilities: Str:39, Dex:8, Con:41, Int:3, Wis:19, Cha:18
Skills: Bluff +38, Concentration +38, Diplomacy +33, Escape Artist +31,
Knowledge (Arcane) +26, Knowledge (Architecture) +26,
Knowledge (Engineering) +26, Knowledge (Local) +26,
Knowledge (Nature) +26, Knowledge (Religion) +24, Listen +69, Scry +33
Spellcraft +47, Spot +69, Search +69
Feats: Alter Breath Weapon (Fire)#, Continuous Breath Weapon#, Combat Reflexes,
Debilitating Breath Weapon (Con)#, Extra Breath Weapon#, Improved Initiative, Improved Multiattack@, Inertial Armor, Leadership, Multiattack, Snatch, Supernatural Transformation@, Sweeping Breath Weapon#
Climate/Terrain: Any marsh and underground
Organization: Solitary
Challenge Rating: 34
Treasure: Double Standard
Alignment: Always Neutral
Advancement: By Age
@ = Savage Species
# = Legends and Lairs: Monster?s Handbook
Katrun was born by the forced breeding of a Blue and Black dragon, and various alchemical and magical processes, including eventually throwing the newborn dragon into the vast maddening void of the Far Realms.
In it?s ?natural? form, Katrun appears as a sexless dragon made of a black gelatinous substance, with a shimmer of thick blue acid. It has 8 heads, and vestigal wings barely usable for battering an opponent.
In it's alternate form, it is a large circular creature supported by its tail and four thin legs, 8 huge hollow tentacles that constantly drool acid, and two very thin tentacles (These take the place of the wing attack). Its gelatinous flesh sags and drools.
Katrun isn?t nearly as intelligent as other dragons, it is purely a savage beast of immense power.
Combat
Katrun will shift to its inhuman form, and use it?s breath weapons, all three kinds, from various mouths. It uses its spells and psionics by pure instinct rather than any planned strategy.
Alternate Form (Su): At will a pseudonatural creature can take the form of a grotesque, tentacled mass, but all its abilities remain unchanged despite its alien appearance. Changing shape is a standard action. Other creatures receive a ?1 morale penalty against pseudonatural creatures in this alternate form.
Blindsight (Ex): A dragon can ascertain creatures by nonvisual means (mostly hearing and scent, but also by noticing the vibrations and other environmental clues) with a range of 360 feet.
Breath Weapon (Ex): A Black Dragon can breath a Line of acid, fire, or lightning 5 ft. high, 5 ft. wide, and 120 ft. long dealing 24d8 damage plus 12 points of Constitution, A reflex save DC: 36 halves damage. This is usable once every 1d4 rounds. Once per day this may be used All heads may use this at the same time.
Charm Reptiles (Sp): The dragon can use this ability three times per day. It operates as a mass charm spell that works only on reptilian animals. The dragon can communicate with any charmed reptiles as though casting a speak with animals spell.
Corrupt Water (Sp): Once per day the dragon can stagnate 10 cubic feet of water, making it become still, foul, and unable to support animal life. The ability spoils liquids containing water. Magic items (such as potions) and items in a creature?s possession must succeed at a Will save (DC 33) or become fouled.
Create/Destroy water (Sp): The dragon can use this ability 3/day. It works like the create waterspell, except that the dragon can decide to destroy water instead of creating it, which automatically spoils unattended liquids containing water. Magical Items (such as potions) and items in a creature?s possession must make a will save (DC: 33) or be ruined.
Frightful Presence (Ex): A dragon can unsettle foes with its mere presence. The ability takes effect automatically whenever the dragon attacks, charges, or flies overhead. Creatures within a radius of 360 Feet are subject if they have fewer hit dice than the dragon. A will save DC: 33 remains immune for one day. On a failure, creatures with 4 or fewer hit dice become panicked for 4d6 rounds and those with 5 or more are shaken for 4d6 rounds. Dragons ignore the frightful presence of other dragons.
Immunities: Dragons are immune to Sleep and Paralysis effects. Black Dragons are immune to acid. Half-Breed Blue Dragons are immune to Electricity. A gelatinous creature is immune to polymorphing and stunning.
Keen Senses (Ex): A dragon sees four times as well as a human in low-light conditions and twice as well in normal light. It also has darkvision with a range of 1200 feet.
Plant Growth (Su): 1/day as per spell.
Psionics (Sp): At will ? (13) adapt body, foresight, insanity, improved flight, iron body, matamorphosis, null psionic field, plane shift, probability travel, teleport without error, time regression, true metabolism and wall of ectoplasm. These abilities are as the powers manifested by an 51st-level psion.
Attack/Defense Modes (Sp): At will ? ego whip, id insinuation, mind blast, mind thrust, psychic crush/empty mind, intellect fortress, mental barrier, thought shield,
tower of iron will
Resilient (Ex): Gelatinous creatures have a less defined shape than the normal creatures they resemble. As a result, it is more difficult to score crippling or killing blows against them. A gelatinous creature cannot be flanked, takes 1d6 less damage from a successful sneak attack, and take one-half the additional damage dealt by a critical hit.
Saving Throw Bonuses (Ex): A gelatinous creature gains a +4 racial bonus on saves against mind-affecting effects, poison, sleep, and paralysis.
Sound Imitation (Ex): The dragon can mimic any voice or sound it has heard, anytime it likes. Listeners must succeed at a Will save (DC: 33) to detect the ruse.
Spell-Like Abilities: 3/day ? Darkness (radius 120 Ft.), Insect Plague, ventriloquism; 1/day ? mirage arcana, hallucinatory terrain, veil;
Spells: As a 17th level sorcerer;
Cast: (7/9/7/7/7/7/7/6/4)
Know: (9/5/5/4/4/4/3/3/2)
0: Dancing Lights, Daze, Detect Magic, Disrupt Undead, Flare, Ghost Sound, Light, Mage Hand, Open/Close, Pet Cemetery$
1: Grease, Obscuring Mist, Sleep, Spider Climb, Weeping Wounds$
2: Cat?s Grace, Glitterdust, Rain of Needles^, One with Dead$, Web
3: Fire Wings^, Gaseous Form, Haste, Slow
4: Dimensional Anchor, Elemental Ward^, Improved Invisibility, Poison Needles^
5: Dismissal, Final Glimpse$, Nightmare, Wood Rot^
6: Antimagic Field, Exoskeletal Animation$, Permanent Image
7: Plague$, Reverse Gravity, Shadow Walk
8: Clone, Risen Army$
^ = Oriental Adventures
$ = Necromancer?s Legacy 1
Telepathy (Su): A psionic creature can communicate telepathically with any creature witin 100 feet that has a language.
True Strike (Su): A pseudonatural creature may once per day make a normal attack with a +20 insight modifier on a single attack roll. The creature is not affected by the miss chance that applies to attacks against concealed targets.
Water Breathing (Ex): The dragon can breathe underwater indefinately and can freely use its breath weapon, spells, and other abilities while submerged.
Skills: Multiheaded creatures gain a +14 racial bonus to Listen, Search, and Spot checks.