Reshiram GX (71/70) [Sun & Moon: Dragon Majesty] Metal[-20] tap Demonic Hordes and sacrifice

tap Demonic Hordes and sacrifice a land of an opponent's choice

−2: Target artifact you control becomes a copy of another target artifact or creature you control until end of turn

necro-alchemist

Sacrifice three artifacts: Search your library for an artifact card

Set: Amonkhet Invocations Type: Creature — Elemental Rarity: Mythic Cost: {3}{B}{G} Lord of Extinction's power and toughness are each equal to the number of cards in all graveyards

Reshiram GX (71/70) [Sun & Moon: Dragon Majesty] Metal[-20] tap Demonic Hordes and sacrificeSet: Sun & Moon: Dragon Majesty Type: Fire Rarity: Secret Rare Retreat cost: Colorless,Colorless