Elbrus, the Binding Blade [From the Vault: Transform]

Set: From the Vault: Transform Type: Legendary Artifact — EquipmentLegendary Creature — Demon Mythic Cost: {7} Elbrus, the Binding Blade Equipped creature gets +1/+0. When equipped creature deals combat damage to a player, unattach Elbrus, the Binding Blade, then transform it. Equip {1} Withengar Unbound Flying, intimidate, trample (A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it.) Whenever a player loses the game, put thirteen +1/+1 counters on Withengar Unbound.