Storm Orb (5e Creature)
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Small elemental, neutral
Damage Resistances lightning, thunder; bludgeoning, piercing, and slashing from nonmagical attacks
Slam. Melee Spell Attack: +3 to hit, reach 5 ft., one target. Hit: 5 (2d4) lightning damage.
A sphere of crackling lightning and roaring thunder, storm orbs move quickly, darting between opponents with ease, and striking them with jolts of lighting or a roaring wave of thunder.
Elemental Nature. A storm orb doesn't require air, food, drink, or sleep.