Chaotic Wave

A burst of wild magic ripples outward from you. Roll 2d6 to determine its two damage type: 1-Acid, 2-Cold, 3-Fire, 4-Lightning, 5-Poison, 6-Thunder. Each creature within 30 feet of you must succeed on a Constitution saving throw or be knocked prone and take 3d10 damage of the first type, as well as 3d10 damage of the second type. If they are the same type, the damage is dealt only once. A creature that succeeds on its saving throw takes half as much damage and isn’t knocked prone. Friendly creatures make the saving throw with Advantage; if they succeed on their saving throws they take 1/4 as much damage and aren't knocked prone.