Helm of Obedience [Alliances] Starter 1999 you may return it to

you may return it to your hand

but let me show you what someone with real power can create

but how do we get down

you may pay {0} rather than pay the mana cost for a spell you cast with mana value X or less

Helm of Obedience [Alliances] Starter 1999 you may return it toSet: 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.