Crystalline Punch

Manifest a glowing crystalline energy around your fist and strike a creature with awesome force. Make a melee spell attack against the target.

On a hit, the target takes 1d4 bludgeoning damage and 1d4 piercing damage. On a critical hit, the crystals embed in the target, causing them to take piercing damage equal to half the original damage at the start of their next turn.

The spell's damage increases by 1d4 for each damage type when you reach 5th level(2d4 bludgeoning/2d4 piercing), 11th level (3d4 bludgeoning /3d4 piercing), and 17th level (4d4 bludgeoning/4d4 piercing)