Corpse Bomb Ritual For Extra Cantrip

You cause the body of a dead creature to explode. Each creature within range must succeed on a constitution saving throw or take 1D6 piercing damage on a failed save, or half as much on a successful save 

The spells damage increases by 1d6 when you reach 5th level 2d6, 11th level 3d6, and 17th level 4d6.