Storm Spirit

Storm Form. The spirit can move through a space as narrow as 1 inch wide without squeezing. A creature that touches the spirit or hits it with a melee attack while within 5 feet of it takes 2 (1d4) lightning and 2 (1d4) thunder damage. In addition, the spirit can enter a hostile creature's space and stop there. The first time it enters a creature's space on a turn, that creature takes 2 (1d4) lightning and 2 (1d4) thunder damage. Any creature which ends its turn in the same space as the spirit takes 2 (1d4) lightning and 2 (1d4) thunder damage at the end of its turn.

Thunder Slam. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) thunder damage.

Shocking Bolt. Ranged Weapon Attack: +4 to hit, range 60/240 ft., one target. Hit: 4 (1d4 + 2) lightning damage.

Tempest (Recharge 6). Each creature within 10 feet of the spirit must succeed on a DC 12 Dexterity saving throw. On a failure, a creature takes 5 (2d4) lightning damage, 5 (2d4) thunder damage, is thrown 10 feet in a random direction, and is knocked prone.