Aura Fist

When you cast this spell, you ignite your fists with blazing magical power. The next time you hit with an unarmed strike during this turn, it deals extra force damage equal to your spellcasting ability modifier, and you can use your spellcasting ability instead of Strength for the attack and damage rolls of that unarmed strike.

This spell's damage increases by 1d6 when you reach 5th level (1d6), 11th level (2d6), and 17th level (3d6).