Air Elemental Myrmidon

The myrmidon makes three Flail attacks.

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

The myrmidon makes one Flail attack. On a hit, the target takes an extra 18 (4d8) lightning damage, and the target must succeed on a DC 13 Constitution saving throw or be stunned until the end of the myrmidon's next turn.