Chaos Barrage

You create a colorful explosion in a 40 ft cone originating from you. Every creature within the cone must make a Dexterity saving throw. Upon a failed save, they take 1d4 + 1d6 + 1d8 + 1d10 + 1d12 + 1d20 damage which bypasses all resistances and immunities. If you roll the same number on 2 or more dice, roll those dice again and add the result to the overall total damage.

Upon a successful save, a target only takes damage from the 3 highest damage dice rolled.