Your often ignored rage curls into arcane energy around your fists, giving you strength where it wasn't before. Once during the spells duration, you may make a melee spell attack as you punch out with otherworldly strength. On a hit, this attack deals 2d10 force damage + your spellcasting ability modifier, and an affected creature must make a Strength Saving Throw or be pushed back 10 feet. If the affected creature has a higher Strength Score than you, this attack deals an extra 1d10 force damage.

A creature damaged by this spell is immune to its effects for 24 hours. 

Using a Higher-Level Spell Slot. For every spell level above 1st, both the initial and extra damage are increased by 1d10 and a creature is pushed an extra 10 feet.