Chaotic Combustion

You attempt to ignite a creature within range with a chaotic voracious flame. The target makes a dexterity saving throw. On a fail, they take 6d6 fire damage, and if any of the damage dice rolled was a 6, roll the damage dice again but reduce the number of d6 by 1. Continue to repeat this process until a 6 is not rolled, adding all dice from each roll together. The target takes half damage from a successful save.

When cast at a higher level, increase the initial damage by 1d6 for each level above 3rd.