Blood Infusion

The caster will cut themselves, taking 1d4 damage, to infuse their blood into their weapon. The user may avoid taking this damage by using either a vial of blood or another source of blood with 5ft. The infusion will enchant the user's weapon, or an ally with 5ft's weapon. This enchantment adds an extra 1d4 damage to attacks. Different sources of blood may cause bonus effect (i.e. The blood of a white dragon may add cold damage or the blood of a creature afflicted by poison may add bonus poison damage)