({T}: Add {B} or {R}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

This land enters tapped. When this land enters, you gain 1 life. {T}: Add {B} or {R}.

{2}, {T}: Add {B} for each Swamp you control.

{T}: Add {C}. {3}, {T}: Add {B} for each basic Swamp you control.

{T}: Add one mana of any color in your commander's color identity.

This land enters tapped unless you control a Swamp or a Mountain. {T}: Add {B} or {R}.

As this land enters, you may reveal a Swamp or Mountain card from your hand. If you don't, this land enters tapped. {T}: Add {B} or {R}.

({T}: Add {R}.)

This land enters tapped. {T}: Add {B} or {R}.

({T}: Add {B} or {R}.) This land enters tapped unless you control two or more basic lands.

({T}: Add {B}.)

Whenever a land enters, this artifact deals 2 damage to that land's controller.

Whenever an opponent loses life, that player mills that many cards. (Damage causes loss of life.)

{T}: Add {C}{C}.

This spell costs {1} less to cast for each creature on the battlefield. Blasphemous Act deals 13 damage to each creature.

Destroy all creatures. They can't be regenerated.

Choose a creature at random, then destroy the rest.

Flying At the beginning of each opponent's end step, that player chooses up to two creatures they control, then sacrifices the rest.

Flying Your opponents can't gain life. At the beginning of each end step, each opponent loses life equal to the life that player lost this turn. (Damage causes loss of life.)

Trample At the beginning of each player's end step, this creature deals 4 damage to that player unless they control a commander.

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.) Whenever you tap a Swamp for mana, add an additional {B}.

Menace, deathtouch When this creature enters, each player loses a third of their life, rounded up.

When this creature enters, it deals damage to each opponent equal to your devotion to red. (Each {R} in the mana costs of permanents you control counts toward your devotion to red.)

Whenever an opponent draws a card, this creature deals 1 damage to that player.

When this creature enters, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)

Whenever an opponent activates an ability of an artifact, creature, or land on the battlefield, if it isn't a mana ability, this creature deals 2 damage to that player.

{T}: Heartless Hidetsugu deals damage to each player equal to half that player's life total, rounded down.

Whenever an opponent casts a spell, Kaervek deals damage equal to that spell's mana value to any target.

Other creatures get -1/-1.

When Kardur enters, until your next turn, creatures your opponents control attack each combat if able and attack a player other than you if able. Whenever an attacking creature dies, each opponent loses 1 life and you gain 1 life.

When Kroxa enters, sacrifice it unless it escaped. Whenever Kroxa enters or attacks, each opponent discards a card, then each opponent who didn't discard a nonland card this way loses 3 life. Escape—{B}{B}{R}{R}, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

Haste; fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Whenever this creature deals combat damage to a player, put a charge counter on it. At the beginning of your end step, this creature deals damage equal to the number of charge counters on it to each opponent.

Menace (This creature can't be blocked except by two or more creatures.) Lieutenant — At the beginning of combat on your turn, if you control your commander, each opponent loses 3 life.

First strike, deathtouch This creature can only attack alone. Whenever this creature attacks a player and isn't blocked, that player's life total becomes 1. This creature assigns no combat damage this combat.

Whenever a player sacrifices a permanent, this creature deals 1 damage to any target.

Afflict 3 (Whenever this creature becomes blocked, defending player loses 3 life.) At the beginning of each of your postcombat main phases, add {R} for each 1 life your opponents have lost this turn.

Whenever a land an opponent controls enters, that player loses 1 life. Put a +1/+1 counter on this creature.

Flying, trample Whenever an opponent searches their library, that player sacrifices a creature of their choice and loses 10 life. Whenever another creature dies, put a +1/+1 counter on Ob Nixilis.

Flash You control your opponents while they're searching their libraries. While an opponent is searching their library, they exile each card they find. You may play those cards for as long as they remain exiled, and you may spend mana as though it were mana of any color to cast them.

Menace Players can't gain life. Whenever another creature enters, this creature deals 1 damage to that creature's controller.

At the beginning of each end step, each player discards their hand.

Menace At the beginning of your upkeep, each player draws a card and loses 1 life.

If a red source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead.

Defender {T}: Exchange target opponent's life total with this creature's toughness.

Whenever a creature dies, put a charge counter on this enchantment. At the beginning of your first main phase, add {B} for each charge counter on this enchantment.

At the beginning of each end step, if an opponent lost 2 or more life this turn, you may put a quest counter on this enchantment. (Damage causes loss of life.) Whenever a card is put into an opponent's graveyard from anywhere, if this enchantment has three or more quest counters on it, you may have that player lose 2 life. If you do, you gain 2 life.

At the beginning of each player's end step, this enchantment deals X damage to that player, where X is the number of untapped lands they control.

When this enchantment enters, you become the monarch. At the beginning of your upkeep, each opponent loses 3 life unless they discard a card. If you're the monarch, instead each opponent loses 6 life unless they discard two cards.

At the beginning of each end step, each player who tapped a land for mana this turn sacrifices a land of their choice. This enchantment deals 2 damage to each player who sacrificed a Plains this way.

Flash If a source would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

If a source you control would deal damage to a permanent or player, it deals triple that damage to that permanent or player instead.

If a source would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

Players can't gain life. At the beginning of each player's upkeep, that player loses half their life, rounded up.

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

Whenever an opponent casts a spell, that player loses 5 life unless they discard a card.

At the beginning of each player's upkeep, this enchantment deals 1 damage to them. Whenever a player casts a spell, if no mana was spent to cast that spell, this enchantment deals 5 damage to that player. {R}: Your opponents can't gain life this turn.

Whenever you gain life, target opponent loses that much life.

Whenever a player casts a spell, this enchantment deals 2 damage to that player.

At the beginning of each player's draw step, that player draws an additional card. Whenever a player draws a card, this enchantment deals 1 damage to that player.

At the beginning of each player's upkeep, this enchantment deals 2 damage to that player. If a player would gain life, that player gains no life instead.

Destroy target artifact, creature, or planeswalker.

Add {B}{B}{B}. Threshold — Add {B}{B}{B}{B}{B} instead if seven or more cards are in your graveyard.

Add {B}{B}{B}.

Add {R}{R}{R}. Splice onto Arcane {1}{R} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Add {R}{R}{R}.

Add {R}{R}{R}{R}{R}.

Add {B} for each creature card in your graveyard.