Helm of Obedience [Alliances] Fighting[×2] Metal[×2] Set: HeartGold & SoulSilver: Black

Set: HeartGold & SoulSilver: Black Star Promos Type: Fighting Rarity: Black Star Promo Retreat cost: Colorless

Set: World Championships 2006 Type: Supporter Rarity: Uncommon

Set: Zendikar Type: Creature — Goblin Berserker Rarity: Mythic Cost: {R}{R} Double strike

Set: Pokémon GO Type: Psychic Rarity: Ultra Rare Retreat cost: Colorless

Set: EX: Crystal Guardians Type: Water Rarity: Holo Rare Retreat cost: Colorless

Helm of Obedience [Alliances] Fighting[×2] Metal[×2] Set: HeartGold & SoulSilver: BlackSet: Alliances Type: Artifact Rarity: Rare Cost: {4} {X}, {T}: Target opponent mills a card, then repeats this process until a creature card or X cards have been put into their graveyard this way, whichever comes first. If one or more creature cards were put into that graveyard this way, sacrifice Helm of Obedience and put one of them onto the battlefield under your control. X can't be 0.