D: [dice] x 10 minutes

You enchant a weapon to float in the air at your side and protect you. As a free action whenever you are attacked, the weapon counterattacks. It strikes as if wielded by you. The spell ends as its duration expires or after [dice] successful hits.

If you invest 4 dice or more in this spell and scribe your Sigil, there is no maximum number of hits.

loyal + weapon

From the Library of Attman’s Queensmage