Threshold — Put three cards from your graveyard on the bottom of your library: Battlefield Scrounger gets +3/+3 until end of turn. Activate only once each turn and only if seven or more cards are in your graveyard.

{1}{G}, Sacrifice Caustic Caterpillar: Destroy target artifact or enchantment.

{X}: Crypt Rats deals X damage to each creature and each player. Spend only black mana on X.

When Fleshbag Marauder enters the battlefield, each player sacrifices a creature.

Sacrifice Fume Spitter: Put a -1/-1 counter on target creature.

Reach When Generous Ent enters the battlefield, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.") Forestcycling {1} ({1}, Discard this card: Search your library for a Forest card, reveal it, put it into your hand, then shuffle.)

When Golgari Brownscale is put into your hand from your graveyard, you gain 2 life. Dredge 2 (If you would draw a card, you may mill two cards instead. If you do, return this card from your graveyard to your hand.)

Madness {1}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.) When Grave Scrabbler enters the battlefield, if its madness cost was paid, you may return target creature card from a graveyard to its owner's hand.

When Mesmeric Fiend enters the battlefield, target opponent reveals their hand and you choose a nonland card from it. Exile that card. When Mesmeric Fiend leaves the battlefield, return the exiled card to its owner's hand.

When Satyr Wayfinder enters the battlefield, reveal the top four cards of your library. You may put a land card from among them into your hand. Put the rest into your graveyard.

Sacrifice Spore Frog: Prevent all combat damage that would be dealt this turn.

Flying Whenever Stinkweed Imp deals combat damage to a creature, destroy that creature. Dredge 5 (If you would draw a card, you may mill five cards instead. If you do, return this card from your graveyard to your hand.)

Troll of Khazad-dûm can't be blocked except by three or more creatures. Swampcycling {1} ({1}, Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.)

{B}, {T}, Discard a card: Return target creature card from your graveyard to your hand.

{B}, Discard a creature card: Return target creature card from your graveyard to your hand.

Bojuka Bog enters the battlefield tapped. When Bojuka Bog enters the battlefield, exile target player's graveyard. {T}: Add {B}.

({T}: Add {G}.)

({T}: Add {B} or {G}.) Haunted Mire enters the battlefield tapped.

({T}: Add {B}.)

Reveal the top five cards of your library. You may put a creature or enchantment card from among them into your hand. Put the rest into your graveyard.

{1}{G}, Sacrifice Caustic Caterpillar: Destroy target artifact or enchantment.

Target creature gets -1/-1 until end of turn for each Swamp you control.

Flying Discard Faerie Macabre: Exile up to two target cards from graveyards.

When Fleshbag Marauder enters the battlefield, each player sacrifices a creature.

You gain 2 life for each creature card in your graveyard. Flashback {2}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

When Mournwhelk enters the battlefield, target player discards two cards. Evoke {3}{B} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Sacrifice Spore Frog: Prevent all combat damage that would be dealt this turn.

Kicker {1}{G} (You may pay an additional {1}{G} as you cast this spell.) Return target creature card from your graveyard to your hand. You gain 2 life. If this spell was kicked, return another target permanent card from your graveyard to your hand.

{X}: Crypt Rats deals X damage to each creature and each player. Spend only black mana on X.

Return target creature card from your graveyard to the battlefield. Flashback—Sacrifice three creatures. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

When Golgari Brownscale is put into your hand from your graveyard, you gain 2 life. Dredge 2 (If you would draw a card, you may mill two cards instead. If you do, return this card from your graveyard to your hand.)

Madness {1}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.) When Grave Scrabbler enters the battlefield, if its madness cost was paid, you may return target creature card from a graveyard to its owner's hand.

Undergrowth — When Lotleth Giant enters the battlefield, it deals 1 damage to target opponent for each creature card in your graveyard.

When Mesmeric Fiend enters the battlefield, target opponent reveals their hand and you choose a nonland card from it. Exile that card. When Mesmeric Fiend leaves the battlefield, return the exiled card to its owner's hand.

Sacrifice Spore Frog: Prevent all combat damage that would be dealt this turn.