Blood Scythe

Cut hand open dealing 1d10 self-damage. Create a large scythe made of blood and strike an 5 feet in front of you. Target takes 2d10 slashing damage. If attack is successful wielder gains 2d6 life steal

At for each spell slot used above 4th the slef damage increases by 1d6 and the damage increases by 1d10 each level. The life steal increases by 1d4 each level.