Multiattack

The golmana makes two Claws attacks and one Tail attack. If both Claws attacks hit a Medium or smaller creature, the target is grappled (escape DC 15). Until this grapple ends, the target is restrained, and the golmana can't make Claws attacks against other targets.

Claws

_Melee Weapon Attack:_ +7 to hit, reach 5 ft., one target. _Hit:_ 17 (3d8+4) slashing damage.

Tail

_Melee Weapon Attack:_ +7 to hit, reach 10 ft., one target. _Hit:_ 13 (2d8+4) piercing damage.

Void Screech (Recharge 5-6)

The golmana lets out a keening screech in a 30-foot cone. Each creature that isn't a Fiend in that area must make a DC 15 CON save. On a failure, a creature takes 14 (4d6) necrotic damage and 18 (4d8) thunder damage, and it has disadvantage on the next attack roll it makes before the start of the golmana's next turn, as brief contact with the energies of the Void destabilizes the creature. On a success, a creature takes half the damage and doesn't suffer this disadvantage on its next attack roll.