Innate Spellcasting (Psionics).

The ceremorph's innate spellcasting ability is Intelligence (spell save DC 15). It can innately cast the following spells, requiring no components:

At will: detect thoughts, levitate
1/day each: dominate monster, plane shift (self only)

Magic Resistance.

The ceremorph has advantage on saving throws against spells and other magical effects.

Actions

Tentacles.

Melee Weapon Attack: +7 to hit, reach 5 ft., one creature. Hit: 15 (2d10 + 4) psychic damage. If the target is Medium or smaller, it is grappled (escape DC 9) and must succeed on a DC 15 Intelligence saving throw or be stunned until this grapple ends.

Extract Brain.

Melee Weapon Attack: +7 to hit, reach 5 ft., one incapacitated humanoid grappled by the ceremorph. Hit: 55 (10d10) piercing damage. If this damage reduces the target to 0 hit points, the ceremorph kills the target by extracting and devouring its brain.

Laser Pistol.

Ranged Weapon Attack: +5 to hit, range 40/120 ft., one target. Hit: 12 (3d6 + 2) radiant damage.

Mind Blast (Recharge 5–6).

The ceremorph magically emits psychic energy in a 60-foot cone. Each creature in that area must succeed on a DC 15 Intelligence saving throw or take 22 (4d8 + 4) psychic damage and be stunned for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Gnome Ceremorph