Arcane Sheath

As you draw your weapon a faint glow envelopes it. You embolden your weapon with faint magical energy, the next attack you make with the weapon is considered magical for the purposes of overcoming resistances.

This spells damage increases when you reach higher levels. At 5th level your weapon attack deals an additional 1d4 force damage. The additional force damage increases by 1d4 when you reach 11th level (2d4) and again at 17th level (3d4)