Weapon of Blood

When you cast this spell, you inflict 1d4 slashing damage on yourself that can’t be healed until after the blade created by this spell is destroyed or the spell ends. The trickling blood transforms into a dagger of red metal that functions as a +1 dagger.

At Higher Levels. When you cast this spell using a spell slot of 3rd to 5th level, the self-inflicted wound deals 3d4 slashing damage and the spell produces a +2 dagger. When you cast this spell using a spell slot of 6th to 8th level, the self-inflicted wound deals 6d4 slashing damage and the spell produces a +2 dagger of wounding. When you cast this spell using a 9th-level spell slot, the self-inflicted wound deals 9d4 slashing damage and the spell produces a +3 dagger of wounding..