Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

When you control no Swamps, sacrifice Barbarian Outcast.

Each land is a Swamp in addition to its other land types.

, Sacrifice a Swamp: Target creature gets +1/+1 until end of turn.

, Sacrifice a creature: Target creature gets +2/+2 until end of turn.

, Pay 1 life, Sacrifice Bloodstained Mire: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

Bog Serpent can't attack unless defending player controls a Swamp.

When you control no Swamps, sacrifice Bog Serpent.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Whenever a player casts a Goblin spell, you may pay . If you do, you gain 2 life.

, : Add for each Swamp you control.

Castle Locthwain enters tapped unless you control a Swamp.

: Add .

, : Draw a card, then you lose life equal to the number of cards in your hand.

If an opponent controls a Swamp and you control a Plains, you may cast this spell without paying its mana cost.

Protection from black

Destroy target non-Swamp land. If that land was nonbasic, Choking Sands deals 2 damage to the land's controller.

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

: Add .

, Sacrifice Contaminated Landscape: Search your library for a basic Plains, Island, or Swamp card, put it onto the battlefield tapped, then shuffle.

Cycling (, Discard this card: Draw a card.)

Corrupt deals damage to any target equal to the number of Swamps you control. You gain life equal to the damage dealt this way.

Protection from black

Crusading Knight gets +1/+1 for each Swamp your opponents control.

When Cyclopean Giant dies, target land becomes a Swamp. Exile Cyclopean Giant.

, : Put a mire counter on target non-Swamp land. That land is a Swamp for as long as it has a mire counter on it. Activate only during your upkeep.

When Cyclopean Tomb is put into a graveyard from the battlefield, at the beginning of each of your upkeeps for the rest of the game, remove all mire counters from a land that a mire counter was put onto with Cyclopean Tomb but that a mire counter has not been removed from with Cyclopean Tomb.

If you control a Swamp, you may sacrifice a creature rather than pay this spell's mana cost.

Creatures you control get +2/+0 until end of turn.

If an opponent controls a Forest and you control a Swamp, you may cast this spell without paying its mana cost.

: Deepwood Legate gets +1/+1 until end of turn.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

: Dirtwater Wraith gets +1/+0 until end of turn.

Dragonskull Summit enters tapped unless you control a Swamp or a Mountain.

: Add or .

Affinity for Swamps (This spell costs less to cast for each Swamp you control.)

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Drowned Catacomb enters tapped unless you control an Island or a Swamp.

: Add or .

Everglades enters tapped.

When Everglades enters, sacrifice it unless you return an untapped Swamp you control to its owner's hand.

: Add .

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

: Up to two target Swamps each become 3/5 Treefolk Warrior creatures in addition to their other types until end of turn.

: Add .

, Sacrifice Foreboding Landscape: Search your library for a basic Swamp, Forest, or Island card, put it onto the battlefield tapped, then shuffle.

Cycling (, Discard this card: Draw a card.)

Choose one —

• Target player discards a card.

• Target creature gets +2/-1 until end of turn.

• Target creature gains swampwalk until end of turn. (It can't be blocked as long as defending player controls a Swamp.)

, , Sacrifice Gem of Becoming: Search your library for an Island card, a Swamp card, and a Mountain card. Reveal those cards, put them into your hand, then shuffle.

Swampcycling (, 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

: Add .

, , Sacrifice Grixis Panorama: Search your library for a basic Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

When Gwyllion Hedge-Mage enters, if you control two or more Plains, you may create a 1/1 white Kithkin Soldier creature token.

When Gwyllion Hedge-Mage enters, if you control two or more Swamps, you may put a -1/-1 counter on target creature.

When Hecatomb enters, sacrifice Hecatomb unless you sacrifice four creatures.

Tap an untapped Swamp you control: Hecatomb deals 1 damage to any target.

Sacrifice a Swamp: Regenerate target black creature. (The next time that creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

At the beginning of your upkeep, sacrifice two Swamps. If you can't, tap Infernal Denizen, and an opponent may gain control of a creature you control of their choice for as long as Infernal Denizen remains on the battlefield.

: Gain control of target creature for as long as Infernal Denizen remains on the battlefield.

When Injector Crocodile dies, incubate 3. (Create an Incubator token with three +1/+1 counters on it and ": Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.)

Swampcycling (, Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.)

Jarad, Golgari Lich Lord gets +1/+1 for each creature card in your graveyard.

, Sacrifice another creature: Each opponent loses life equal to the sacrificed creature's power.

Sacrifice a Swamp and a Forest: Return Jarad from your graveyard to your hand.

Jorubai Murk Lurker gets +1/+1 as long as you control a Swamp.

: Target creature gains lifelink until end of turn. (Damage dealt by the creature also causes its controller to gain that much life.)

At the beginning of each player's upkeep, Karma deals damage to that player equal to the number of Swamps they control.

All Swamps are 1/1 black creatures that are still lands.

If Lake of the Dead would enter, sacrifice a Swamp instead. If you do, put Lake of the Dead onto the battlefield. If you don't, put it into its owner's graveyard.

: Add .

, Sacrifice a Swamp: Add .

Target opponent loses 2 life for each Swamp you control. Last Stand deals damage to target creature equal to the number of Mountains you control. Create a 1/1 green Saproling creature token for each Forest you control. You gain 2 life for each Plains you control. Draw a card for each Island you control, then discard that many cards.

Snow swampwalk (This creature can't be blocked as long as defending player controls a snow Swamp.)

+1: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.

−3: Target creature gets +X/+X or -X/-X until end of turn, where X is the number of Swamps you control.

−6: You get an emblem with "Swamps you control have ‘: Add .'"

Flash

, Sacrifice an Island: Lochmere Serpent can't be blocked this turn.

, Sacrifice a Swamp: You gain 1 life and draw a card.

: Exile five target cards from an opponent's graveyard. Return Lochmere Serpent from your graveyard to your hand. Activate only as a sorcery.

When Maestros Theater enters, sacrifice it. When you do, search your library for a basic Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle and you gain 1 life.

, : Add for each Swamp you control.

, Pay 1 life, Sacrifice Marsh Flats: Search your library for a Plains or Swamp card, put it onto the battlefield, then shuffle.