Multiattack

The ettin makes one Knobbed Club attack and one Spiked Club attack.

Knobbed Club

_Melee Weapon Attack:_ +7 to hit, reach 5 ft., one target. _Hit:_ 18 (3d8+5) bludgeoning damage, and the target must succeed on a DC 15 STR save or be incapacitated until the end of its next turn, as the blow knocks the wind out of the target. This weapon is wielded by the right head.

Spiked Club

_Melee Weapon Attack:_ +7 to hit, reach 5 ft., one target. _Hit:_ 18 (3d8+5) piercing damage, and the target must succeed on a DC 15 CON save or be poisoned for 1 minute, as bits of rotten meat clinging to the club's spikes coat the target's wound. The target can repeat the save at the end of each of its turns, ending the effect on itself on a success. This weapon is wielded by the left head.