Eldritch Boxing

Instead of unleashing the beam of energy towards your opponent, you are able to concentrate it, creating an aura radiating from your arms to the tip of your fingers. When punching, make an attack roll using your Spell attack bonus or Strength. On hit, the target takes 1d10 force damage plus your strength modifier, as well as knocks back the opponent 5 feet in the opposite direction after the hit has been initiated.

This spell can hit more than once at higher levels: 2 hits at 5th level, 3 hits at 11th level, and 4 hits at 17th level. Each attack must be rolled separately. Each successful hit will knock back the opponents an additional 5 feet. The knock back effect will initiate after all damage has been calculated.