At the beginning of each player’s upkeep, that player sacrifices an artifact, creature, or land.

Search your library for up to three creature cards, put them into your graveyard, then shuffle.

Whenever a creature dies, that creature’s controller sacrifices a land.

Threshold — {1}{B}, {T}, Exile two cards from your graveyard: Target player discards a card. Activate only as a sorcery and only if seven or more cards are in your graveyard.

{2}{B}, Sacrifice a creature: Target creature gets -2/-2 until end of turn.

{2}{B}, Exile a creature card from your graveyard: Target creature gets -2/-2 until end of turn.

{T}: Add {B}. Cabal Pit deals 1 damage to you.

Threshold — {B}, {T}, Sacrifice Cabal Pit: Target creature gets -2/-2 until end of turn. Activate only if seven or more cards are in your graveyard.

Whenever a player casts a spell, that player discards X cards, where X is the number of cards in all graveyards with the same name as that spell.

Create a 3/3 green Elephant creature token.

Flashback {3}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Vigilance

Cantivore’s power and toughness are each equal to the number of enchantment cards in all graveyards.

Draw two cards, then discard two cards.

When Cartographer enters the battlefield, you may return target land card from your graveyard to your hand.

Flashback costs you pay cost up to {2} less.

Flashback costs your opponents pay cost {2} more.

Enchant land

Enchanted land has “{T}: Target player loses 3 life.”

Target player can’t cast creature spells this turn.

Draw a card.

{T}: Add {G}. Centaur Garden deals 1 damage to you.

Threshold — {G}, {T}, Sacrifice Centaur Garden: Target creature gets +3/+3 until end of turn. Activate only if seven or more cards are in your graveyard.

{T}: Target player draws two cards, then discards two cards.

{T}: Add {U}. Cephalid Coliseum deals 1 damage to you.

Threshold — {U}, {T}, Sacrifice Cephalid Coliseum: Target player draws three cards, then discards three cards. Activate only if seven or more cards are in your graveyard.

{T}: Target player draws a card, then discards a card.

{U}{U}: Tap target creature without flying.

Flying

{2}{U}, Sacrifice a land: Draw a card.