Innate Spellcasting. The abomination's innate spellcasting ability is Charisma (spell save DC 13). It can innately cast the following spells, requiring no material components:

At will: darkness, invisibility

1/day each: charm person, dimension door, sleep

Recharge 5-6: burning hands

Magical Attacks. The abomination's claw attacks are magical.

Regeneration. The abomination regains 10 hit points at the start of its turn if it has at least 1 hit point.

Multiattack. The abomination makes two claw attacks

Claw. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 8 (1d8 + 4) slashing damage.

Change Shape. The abomination magically polymorphs into a Small or Medium humanoid, or any beast whose challenge rating 7 or lower. Other than its size, its statistics are the same in each form.