Death Blossom

A small black sphere appears in the caster's hand. With a large throwing motion the sphere is thrown to location within range. The sphere explodes out into a 30FT. radius which appears to be black and purple flower. The effect goes through solid matter and covers the 30FT radius without restraint. The total amount of damage is transformed into a white light that is returned to the caster. 

All within range must make CON save. The blossom does 3d10 necrotic damage. It does half damage to those who make the save. The total amount of damage is returned as health to the caster. The amount health can go over the max hit points the caster has currently.  Any hit points over max hit points of the caster fade an hour after casting the spell. 

An additional 1d10 damage is done for every level above 3rd the spell is cast. The materials of the spell are consumed.