Adult Thought Snakes are larger than the Juveniles, have two heads for an extra attack, and have more evolved anti-magic abilities.
Adult Thought Snake CR 4
CN M Animal
, Senses ; ; Tremorsense 60 ft.
AC 16, touch 13, flat-footed 13 (+3 Dex, +3 natural)
hp 33 (HD)
Spd 20 ft., climb 20 ft., swim 20 ft.
Melee Bite(2 Bites on standard attack) ( plus disease)
Space 5 ft.; Reach 5 ft.
Atk Options dodge
Special Actions spring attack
Spell-like Abilities (CL 9): At will: Detect Magic, 10/day: Dispel Magic, Obscuring Mist (30 ft. radius for 4 min.)
Abilities, , , , ,
SQ Fear of Mind-Affects
Feats Dodge, Spring Attack, Weapon Finesse, Weapon Focus (Bite)
Skills Balance +11, Climb +13, Jump +13, Swim +6
Disease: Upon a successful bite on a living, spellcasting creature, that creature becomes infected with Thought Worms.
Fear of Mind-Affects: Thought Snakes hate magic generally, but they don't fear most magics due to their Dispel Magic ability. But any spell that is successfully cast on them which results in them telepathically hearing or seeing messages (i.e. Sending or Telepathic Bond, but not Message nor Speak with Animals. Language does not matter; even if the snake doesn't understand it, they will be frightened by it.) will cause them to have to make a DC 15 Will save or run away forrounds, in addition to what the spell normally does.