Helm of Obedience [Alliances] Cat Warrior or become tapped

or become tapped

let all the battle join as one

Part prison

Set: Kaladesh Prerelease Promos Type: Instant Rarity: Rare Cost: {3}{U} Return any number of target nonland

sacrifice it

Helm of Obedience [Alliances] Cat Warrior or become tappedSet: 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.