Helm of Obedience [Alliances] Tenth Edition Prerelease Promos Discard a creature card: Search

Discard a creature card: Search your library for a creature card

Set: Eternal Masters Type: Artifact Rarity: Uncommon Cost: {3} Sacrifice a creature: Add {C}{C}

Some are filled with things best left unseen

Set: Alpha Edition Type: Enchantment — Aura Rarity: Common Cost: {U}{U} Enchant land

Boorish Herder enters the battlefield or attacks

Helm of Obedience [Alliances] Tenth Edition Prerelease Promos Discard a creature card: SearchSet: 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.