You weave together a torrent of elemental energy and launch it at a creature within range. The creature must succeed on a dexterity saving throw or take 10 damage each of acid, cold, fire, lightning, poison, and thunder, or half as much on a successful save.   In addition, each creature of your choice within 30ft of the target must make a dexterity saving throw or take 5 damage from acid, cold, fire, lightning, poison, or thunder (your choice for each creature), or half as much on a successful save.