Fiendsmith Kyrie Super Rare - Supreme Darkness 1st Edition

This turn, your LIGHT Fiend monsters cannot be destroyed by battle, also any battle damage you take becomes halved. You can banish this card from your GY; Fusion Summon 1 "Fiendsmith" Fusion Monster from your Extra Deck, using monsters you control, and/or monsters in your Spell & Trap Zones that are equipped to a "Fiendsmith" monster as an Equip Spell, as material. You can only use this effect of "Fiendsmith Kyrie" once per turn.