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.