Gorz the Emissary of Darkness (Quarter Century Secret Rare)

When you take damage from a card in your opponent's possession: You can Special Summon this card from your hand. You must control no cards to activate and to resolve this effect. When this card is Special Summoned by its effect: Activate the appropriate effect, based on the type of damage.
● Battle damage: Special Summon 1 Emissary of Darkness Token (Fairy/LIGHT/Level 7/ATK ?/DEF ?). Its ATK and DEF are each equal to the amount of battle damage you took.
● Effect damage: Inflict damage to your opponent equal to the damage you took.