The Beastmaster - 3e custom monsters
Brain Leech













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By planeshifter
















BRAIN LEECH

Large Vermin

Hit Dice: 3d6+1 (62 hp)

Initiative: -1 (Dex)

Speed: 5 ft.

AC: 19 (-1 size, +3 natural)

Attacks: Slam +0 melee

Damage: Slam 2d8+9

Face: 10 ft. by 10 ft./10 ft.

Special Attacks: Psionics, Mind Leech

Special Qualities: Blindsight

Saves: Fort:Fort +5 Will:Ref -3 Ref:Will +8

Abilities: Str:19 Dex:3 Con:17 Int:20 Wis:13 Chr:8

Skills: Concentration +3, Knowledge (psionics) +4, Search +2

Feats: Psychic Bastion, Skill Focus (knowledge psionics)


Climate: Marsh, any underground

Organization: Solitary, Pair or Pod (3-5)

CR: 7

Treasure: Double standard

Alignment: Always neutral evil

Advancement: 16-20 HD (large) 21-30 HD (huge)

Brain slugs are the most intelligent vermin to exist on the material plane. They are also crafty, sadistic, self intrested 12ft long beasts. They look like noting more than a huge black leech with a beige underside. But on closer inspection anyone will notice the large pink brain instead of a mouth. They have a taste for knowledge (literaly) so characters with large intellects are in danger of being targeted by a brain leechs hunger. To do this, they simply use various psionic powers to weaken the characters mental defenses and then simply break into the persons psyche and takes whatever knowledge it wants leaving them with the intelligence of an animal. Brain leechs are very intelligent and long lived creatures (some being more than 1'200 years old), with much knowledge of history, cosmologys, arcana, psionics and much more, infact there is not much their not intrested in. Brain Leechs speak common and undercommon but often learn many more due to the years of digesting various humanoids minds.

COMBAT
Brain leechs are very calm, patient creatures. They slowly slither into battle while bombarding opponents with various psionic abilitys. They always attack the most intelligent creature present.
Blind-sight(Ex): Brain slugs have no visual organs, but instead constantly read creatures thoughts as if casting detect thoughts by a 20th leval psion. If an opponent has cast a power that can block detect thoughts such as conceal thoughts, the brain leech cannot see them. A brain leech can surpress this ability at will.
Psionics(Sp): At will- can manifest psionic powers like a 20th leval psion. Attack/Defense modes at will all/all.
Mind Leech(Su): Every 10 minutes a Brain leech can deal 1d8 tempory intelligence damage. If it manages to reduce the opponents intelligence to 2, the damage becomes permanant.