Blood Blade for Sorcerer

You create a blade out of your own blood to use as a weapon.

You lose hit points equal to 1d6 plus your spellcasting ability modifier, and create your choice of a dagger, rapier, shortsword, or longsword that is made up of your own blood in your free hand. The weapon is magical, and you can use your spellcasting ability for the attack and damage rolls of melee attacks using that weapon. When the spell ends, the weapon becomes just a puddle of blood. The spell ends if you let go of the weapon.

+ You lose hit points equal to 1d6 spell level +abiability modifier to damage rolls of melee attacks