Chaos cyclone

The caster wastes 3 of their spell slots and summons a massive energy cyclone that damages everything around them unleashing terrifying damage potential. roll only one d20 to hit for every target, deals massive damage to friend and foe alike (use with caution). After casting this spell, the caster has exhaustion for 5 rounds. The caster also takes 2 d12+5 damage as compensation for casting the spell.

Targets must perform a dex savings throw to avoid the damage.