Mage Strike (Su)

As a swift action, you can expend one use of mythic power to make one melee attack. This is in addition to any other attacks you make this round. If you expend one arcane spell that you’ve prepared or arcane spell slot that you have available, you gain a bonus on the attack roll equal to double the spell’s or slot’s level, and the attack deals an additional 2d6 points of energy damage (your choice of acid, cold, electricity, or fire) per level of the spell or slot expended. The normal damage from this attack bypasses all damage reduction, but the energy damage is still affected by resistances and immunities.