: Regenerate this creature.

Plague Rats's power and toughness are each equal to the number of creatures named Plague Rats on the battlefield.

Destroy X target Mountains. Volcanic Eruption deals damage to each creature and each player equal to the number of Mountains put into a graveyard this way.

Defender (This creature can't attack.)

Other Zombie creatures have swampwalk. (They can't be blocked as long as defending player controls a Swamp.)
Other Zombies have ": Regenerate this permanent."

, : Destroy target black permanent.

At the beginning of your upkeep, sacrifice this enchantment unless you pay .
All Mountains are Plains.

Return target creature card from your graveyard to the battlefield.

Reach (This creature can block creatures with flying.)

Destroy all Plains.

Red creatures get +1/+1.
Whenever a Mountain is tapped for mana, its controller adds an additional .

Enchant land
At the beginning of the upkeep of enchanted land's controller, this Aura deals 1 damage to that player.

Destroy all Islands.

Flying
: This creature gets +1/+0 until end of turn. If this ability has been activated four or more times this turn, sacrifice this creature at the beginning of the next end step.

, : This artifact deals 1 damage to any target.

, : 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 this artifact 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 this artifact but that a mire counter has not been removed from with this artifact.

Destroy all lands.

Defender (This creature can't attack.)
: Regenerate this creature.

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

At the beginning of the end step, if no creatures are on the battlefield, sacrifice this enchantment.
: This enchantment deals 1 damage to each creature and each player.

Enchant creature
You control enchanted creature.

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

, : Tap target artifact, creature, or land.

, : Prevent the next 2 damage that would be dealt to you this turn.

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

This artifact enters tapped.
, : Destroy all artifacts, creatures, and enchantments.

At the beginning of each end step, put a corpse counter on this creature for each creature that died this turn.
Remove a corpse counter from this creature: Regenerate this creature.

, : Draw a card.

As this enchantment enters, you lose life equal to your life total.
You don't lose the game for having 0 or less life.
If you would gain life, draw that many cards instead.
Whenever you're dealt damage, sacrifice that many nontoken permanents. If you can't, you lose the game.
When this enchantment is put into a graveyard from the battlefield, you lose the game.

: The next time a source of your choice would deal damage to target creature this turn, that source deals that damage to you instead.

All Forests are 1/1 creatures that are still lands.

Flying

Attacking creatures you control get +1/+0.

: Target creature you control with toughness less than this creature's power gains flying until end of turn. Destroy that creature at the beginning of the next end step.

Untapped creatures you control get +0/+2.