Remove Amulet of Quoz from your deck before playing if you're not playing for ante. {T}, Sacrifice Amulet of Quoz: 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.

Remove Bronze Tablet from your deck before playing if you're not playing for ante. Bronze Tablet enters the battlefield tapped. {4}, {T}: Exile Bronze Tablet and target nontoken permanent an opponent owns. That player may pay 10 life. If they do, put Bronze Tablet into its owner's graveyard. Otherwise, that player owns Bronze Tablet and you own the other exiled card.

Remove Contract from Below from your deck before playing if you're not playing for ante. Discard your hand, ante the top card of your library, then draw seven cards.

Remove Darkpact from your deck before playing if you're not playing for ante. You own target card in the ante. Exchange that card with the top card of your library.

Remove Demonic Attorney from your deck before playing if you're not playing for ante. Each player antes the top card of their library.

Remove Jeweled Bird from your deck before playing if you're not playing for ante. {T}: Ante Jeweled Bird. If you do, put all other cards you own from the ante into your graveyard, then draw a card.

Remove Rebirth from your deck before playing if you're not playing for ante. Each player may ante the top card of their library. If a player does, that player's life total becomes 20.

Remove Tempest Efreet from your deck before playing if you're not playing for ante. {T}, Sacrifice Tempest Efreet: 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.

You may begin the game with Buried Ogre in your graveyard. If you do, you lose 1 life.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.) Cycling—Pay 2 life. (Pay 2 life, Discard this card: Draw a card.)

Counter target noncreature spell. Its controller creates two Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

(Start the game with this conspiracy face up in the command zone.) Your minimum deck size is reduced by five.

At the beginning of the game, look at target opponent's hand and choose a nonland card from it. That player discards that card. {X}, Pay X life: Put target creature card with mana value X from an opponent's graveyard onto the battlefield under your control.