Brain Blaster

Mega Mind. The brain blaster can concentrate on an additional spell for every creature Charmed by it.

Curse of Enfeeblement. Whenever a creature is dealt damage by the brain blaster or a creature Charmed by it, the creature has Disadvantage on Saving Throws until the end of the brain blasters next turn.

Multiattack. The brain blaster makes two Claw attacks.

Claw. Melee Attack Roll: +9, reach 5 ft. Hit: 15 (3d6 + 5) Slashing damage.

Mind Control (Recharge 5—6). Wisdom Saving Throw: DC 17, one creature the brain blaster can see within 60 feet. Failure: The target is Charmed and repeats the save at the end of each of its turns, ending the effect on itself on a success. After 1 minute, it succeeds automatically. While Charmed, the target acts as an ally to the brain blaster and is under its control. The brain blaster can then immediately use its Spellcasting or Supportive Magic (requiring no action), but it can only target a creature Charmed by it. When the target stops being Charmed, or if they are immune to being Charmed, they take Psychic damage equal to half their Hit Point Maximum.

Spellcasting. The brain blaster casts one of the following spells, requiring no spell components and using Intelligence as the spellcasting ability (spell save DC 17):

4/Day Each: Cure Wounds, Heroism
3/Day Each: Enlarge/Reduce, Invisibility
2/Day Each: Haste, Gaseous Form

Supportive Magic. The brain blaster casts Healing Word or Dragon’s Breath, using the same spellcasting ability as Spellcasting.

Disruptive Magic. The brain blaster casts Silvery Barbs in response to the spell’s trigger, using the same spellcasting ability as Spellcasting.