Storm Giant

Amphibious. The giant can breathe air and water.

Innate Spellcasting. The giants spellcasting ability is Charisma (spell save DC 17). It can innately cast the following spells, requiring no material components: At will: detect magic, feather fall, levitate, light, 3/day each: control water, control weather, water breathing, 1/day: commune

Multiattack. The giant attacks twice with its greatsword.

Greatsword. Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 30 (6d6 + 9) slashing damage.

Rock. Ranged Weapon Attack: +12 to hit, range 60/240 ft., one target. Hit: 44 (10d6 + 9) bludgeoning damage. If the target is a Large or smaller creature it makes a DC 22 Strength saving throw falling prone on a failure.

Lightning Strike (Recharge 5-6). The giant throws a lightning bolt at a point it can see within 500 feet. Each creature within 10 feet of that point makes a DC 18 Dexterity saving throw taking 56 (16d6) lightning damage on a success or half the damage on a failure.

Sword Sweep (While Bloodied). The giant makes a greatsword attack against each creature within 10 feet. Each creature hit with this attack makes a DC 22 Strength saving throw falling prone on a failure.

Stomp. Melee Weapon Attack: +14 to hit, reach 5 ft., one Medium or smaller prone target. Hit: 19 (3d6 + 9) bludgeoning damage.