Balterie

This spell specializes in using blood in order create barriers and to sharpen itself as a weapon. You may sacrifice a number of d10 hit points, of which you may not reduce or nullify in any way, to either create a barrier or to enhance a weapon of your choice. When doing so, for each die of damage you choose to sacrifice, you may either add 1 AC to yourself or add +1 to Hit and +1 Damage to your weapon of choice. Until the spell has ended, you may not restore any damage dealt to yourself in order to obtain these buffs.