Medium Humanoid
Armor Class 12
Hit Points 45 (7d8+14)
Speed swim +30, walk +30
Challenge 2
Skills any +0
Senses passive Perception 10
Languages Common, unlimited-range telepathy with aboleth
Sea Changed. The aboleth thrall can breathe water and air, but must bathe in water for 1 hour for every 12 hours it spends dry or it begins to suffocate. It is magically charmed by the aboleth.
Poison Ink Knife. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 (1d4 + 2) slashing damage plus 10 (3d6) poison damage.
Self-Sacrifice. When a creature within 5 feet of the thrall that the thrall can see hits an aboleth with an attack, the thrall can make itself the target of the attack instead.
Source: Level Up Advanced 5e Monstrous Menagerie · OGL/Open