Jeweled Bird

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{T}: Ante this artifact. If you do, put all other cards you own from the ante into your graveyard, then draw a card.

Rebirth

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Each player may ante the top card of their library. If a player does, that player's life total becomes 20.

Demonic Attorney

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Each player antes the top card of their library.

Timmerian Fiends

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{B}{B}{B}, Sacrifice this creature: The owner of target artifact may ante the top card of their library. If that player doesn't, exchange ownership of that artifact and Timmerian Fiends. Put the artifact card into your graveyard and Timmerian Fiends from anywhere into that player's graveyard. This change in ownership is permanent.

Bronze Tablet

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This artifact enters tapped.
{4}, {T}: Exile this artifact and target nontoken permanent an opponent owns. That player may pay 10 life. If they do, put this card into its owner's graveyard. Otherwise, that player owns this card and you own the other exiled card.

Tempest Efreet

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{T}, Sacrifice this creature: Target opponent may pay 10 life. If that player doesn't, they reveal a card at random from their hand. Exchange ownership of the revealed card and Tempest Efreet. Put the revealed card into your hand and Tempest Efreet from anywhere into that player's graveyard. This change in ownership is permanent.

Darkpact

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You own target card in the ante. Exchange that card with the top card of your library.

Amulet of Quoz

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{T}, Sacrifice this artifact: Target opponent may ante the top card of their library. If they don't, you flip a coin. If you win the flip, that player loses the game. If you lose the flip, you lose the game. Activate only during your upkeep.

Contract from Below

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Discard your hand, ante the top card of your library, then draw seven cards.