Arcane Edge

You summon a blade of shimmering golden arcane energy and deliver a strike which deals 1d8 force damage plus your Strength or Intelligence modifier, whichever is highest, to the target. This damage becomes 1d12 if the target has an AC greater than your own.

This spell's damage increases by 1d8 or 1d12 when you reach 5th level (2d8 or 2d12), 11th level (3d8 or 3d12), and 17th level (4d8 or 4d12).