This land enters tapped. {T}: Add {B}. {4}{B}, {T}, Sacrifice this land: Discover 4. Activate only as a sorcery. (Exile cards from the top of your library until you exile a nonland card with mana value 4 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

Creatures target player controls get -2/-2 until end of turn.

As an additional cost to cast this spell, sacrifice a creature or discard a card. Destroy target creature or planeswalker.

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

As an additional cost to cast this spell, sacrifice a creature or pay {3}{B}. Exile target creature or planeswalker.

This spell costs {1} less to cast for each creature card in your graveyard. Exile target creature or planeswalker.

As an additional cost to cast this spell, sacrifice a creature. You gain life equal to the sacrificed creature's toughness. Destroy target creature an opponent controls.

Tendrils of Corruption deals X damage to target creature and you gain X life, where X is the number of Swamps you control.

When this creature dies, scry 1 and create a Treasure token. (To scry 1, look at the top card of your library. You may put that card on the bottom. A Treasure token is an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

{T}: Add {B}. {1}{B}{B}, {T}, Sacrifice this artifact: You draw two cards and you lose 2 life.

Discard a card, Sacrifice this creature: Add {B}{B}{B}.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.) When this creature dies, each opponent loses 2 life.

When this creature dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

When this creature dies, create a 2/2 black Zombie creature token.

When this creature dies, return target creature card with mana value 2 or less from your graveyard to the battlefield.

When this creature dies, each opponent discards a card.

When this creature dies, each opponent loses 2 life and you gain 2 life.

When this creature dies, create a 1/1 green Elf Warrior creature token. Encore {4}{B} ({4}{B}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

When this creature dies, create three 1/1 green Elf Warrior creature tokens, then mill three cards. (Put the top three cards of your library into your graveyard.)

Target creature gets +X/+0 until end of turn, where X is the number of creature cards in your graveyard.

When this creature dies, create a tapped 2/2 black Rogue creature token. Blitz {3}{B} (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.)

Deathtouch When this creature dies, create a 2/2 black Zombie creature token with decayed. (It can't block. When it attacks, sacrifice it at end of combat.)

Flying When this creature dies, each opponent loses 2 life and you gain 2 life.

When this creature dies, discover 3. (Exile cards from the top of your library until you exile a nonland card with mana value 3 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

Flying When this creature dies, each opponent discards a card.

When this creature dies, it deals 2 damage to each opponent and you gain 2 life.

When this creature dies, choose one — • Target creature an opponent controls gets -1/-1 until end of turn. • Create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Target player mills two cards, draws two cards, and loses 2 life. (To mill a card, a player puts the top card of their library into their graveyard.)

Target player draws two cards and loses 2 life.

As an additional cost to cast this spell, sacrifice a creature. Draw two cards.

As an additional cost to cast this spell, sacrifice an artifact or creature. Draw two cards. Flashback {4}{B} (You may cast this card from your graveyard for its flashback cost and any additional costs. Then exile it.)

You draw two cards, lose 2 life, then mill two cards.

Deathtouch When this creature dies, if it wasn't blocking, draw a card.

As an additional cost to cast this spell, sacrifice a creature. Draw two cards.

This creature gets +1/+1 for each creature card in your graveyard.

As an additional cost to cast this spell, sacrifice a creature or pay {1}{B}. Menace (This creature can't be blocked except by two or more creatures.)

Whenever a creature you control dies, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

As an additional cost to cast this spell, sacrifice a creature. Rite of Consumption deals damage equal to the sacrificed creature's power to target player or planeswalker. You gain life equal to the damage dealt this way.

Exploit (When this creature enters, you may sacrifice a creature.) When this creature exploits a creature, each opponent sacrifices a creature of their choice.

Flying Exploit (When this creature enters, you may sacrifice a creature.) Whenever another creature you control dies, put a +1/+1 counter on this creature. It gains haste until end of turn if it exploited that creature.

When this creature enters, create a 1/1 black Rat creature token with "This token can't block." Whenever another creature you control dies, put a +1/+1 counter on this creature.

Flying {1}{B}, Sacrifice a creature: Regenerate this creature.

Return target creature card from your graveyard to your hand. Put a +1/+1 counter on up to one target Zombie you control. Flashback {3}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

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.)

At the beginning of combat on your turn, if you both own and control this creature and a creature named Midnight Scavengers, exile them, then meld them into Chittering Host.

Return up to two target creature cards from your graveyard to your hand, then discard a card.

When this creature enters, you may return target creature card with mana value 3 or less from your graveyard to your hand. (Melds with Graf Rats.)

When this creature enters, mill three cards. You may put a creature card from among the cards milled this way into your hand. If you don't, put a +1/+1 counter on this creature. (To mill a card, put the top card of your library into your graveyard.)

Return target creature card from your graveyard to the battlefield.

When this creature enters, you draw a card and you lose 1 life. Unearth {3}{B} ({3}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

You may mill three cards. Then return a creature card from your graveyard to the battlefield. (To mill a card, put the top card of your library into your graveyard.)

Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control."

Until end of turn, target creature gets +1/+0 and gains indestructible. (Damage and effects that say "destroy" don't destroy it.)

All creatures gain fear until end of turn. (They can't be blocked except by artifact creatures and/or black creatures.) Cycling {1}{B} ({1}{B}, Discard this card: Draw a card.) When you cycle this card, you may have target creature gain fear until end of turn.

Target creature gets +1/+0, becomes black, and gains shadow until end of turn. (It can block or be blocked by only creatures with shadow.) Flashback {1}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Mill three cards, then you may return a creature card from your graveyard to your hand. (To mill three cards, put the top three cards of your library into your graveyard.)

Flying When this creature enters or dies, mill two cards. (Put the top two cards of your library into your graveyard.)

When this creature enters, you may sacrifice a creature or discard a creature card. If you do, draw a card.

Deathtouch When this creature enters, you may mill two cards. (You may put the top two cards of your library into your graveyard.)

Lifelink When this creature enters, target player mills two cards. (They put the top two cards of their library into their graveyard.)

Flying When this creature dies, each player mills two cards. Then you may exile this card. When you do, put target creature or battle card from your graveyard on top of your library. (To mill two cards, a player puts the top two cards of their library into their graveyard.)

Flying When this creature enters, mill four cards. You gain 1 life for each creature card milled this way. (To mill four cards, put the top four cards of your library into your graveyard.)

Flying At the beginning of combat on your turn, each player mills three cards.

When this creature enters, you draw a card and you lose 1 life. Unearth {2}{B} ({2}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Swampcycling {2} ({2}, Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.) Backup 2 (When this creature enters, put two +1/+1 counters on target creature. If that's another creature, it gains the following ability until end of turn.) Menace

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)

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