Helm of Obedience [Alliances] Elder Dragon destroy Cosmic Horror unless you

destroy Cosmic Horror unless you pay {3}{B}{B}{B}

At end of combat

Until that player's next turn

Only the splattered armor and ichor-stained sword hinted at the unfathomable evil the knight had just laid waste

Set: Legends Type: Legendary Land Rarity: Uncommon {T}: Add {G}

Helm of Obedience [Alliances] Elder Dragon destroy Cosmic Horror unless youSet: 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.