Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Each player discards their hand, then draws seven cards.

Other Goblins get +1/+1 and have mountainwalk.

: Destroy target tapped creature.

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

: The next time an unblocked creature of your choice would deal combat damage to you this turn, prevent all but 1 of that damage.

Enchant land
Enchanted land has "At the beginning of your upkeep, you may pay . If you do, you gain 1 life."

Remove this card from your deck before playing if you're not playing for ante.
You own target card in the ante. Exchange that card with the top card of your library.

Flying
: This creature gets +0/+1 until end of turn.

You may spend white mana as though it were red mana.

, : Target player discards a card. Activate only during your turn.

This creature gets +1/+1 as long as you control a Swamp.
: Regenerate this creature.

Enchant land
When enchanted land becomes tapped, destroy it. That land's controller may attach this Aura to a land of their choice.

Remove this card from your deck before playing if you're not playing for ante.
Each player antes the top card of their library.

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

Destroy all creatures. They can't be regenerated.

, : 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.

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

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

Whenever a land is put into a graveyard from the battlefield, this artifact deals 2 damage to that land's controller.

Flying

Whenever this creature is dealt damage, put a +1/+1 counter on it.

Destroy all lands.

Whenever a player taps a land for mana, this enchantment deals 1 damage to that player.

, : Destroy target black permanent.

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

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.

, : Draw a card.

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

Trample
This creature can block an additional creature each combat.

Flying
Whenever this creature blocks or becomes blocked by a non-Wall creature, destroy that creature at end of combat.

You may have this creature enter as a copy of any creature on the battlefield, except it doesn't copy that creature's color and it has "At the beginning of your upkeep, you may have this creature become a copy of target creature, except it doesn't copy that creature's color and it has this ability."

, : Create a 1/1 colorless Insect artifact creature token with flying named Wasp. (It can't be blocked except by creatures with flying or reach.)

As long as this creature is untapped, all damage that would be dealt to you by unblocked creatures is dealt to this creature instead.

This creature can't attack unless defending player controls an Island.
: This creature deals 1 damage to any target.
When you control no Islands, sacrifice this creature.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
At the beginning of your upkeep, this creature deals 8 damage to you unless you pay .