Commander creatures you own have "Room abilities of dungeons you own trigger an additional time."

Target creature gets -3/-0 until end of turn. Target creature gets -0/-3 until end of turn.

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep. You draw a card at the beginning of the next turn's upkeep.

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

Counter target creature or planeswalker spell. Venture into the dungeon. (Enter the first room or advance to the next room.)

Destroy target nonlegendary creature.

Target player sacrifices a creature of their choice. Flashback {5}{B}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Counter target spell.

{X}: This creature deals X damage to each creature and each player. Spend only black mana on X.

As an additional cost to cast this spell, return a land you control to its owner's hand. Counter target spell.

Target player sacrifices a creature of their choice.

{1}{B}, {T}, Sacrifice this artifact: Destroy target nonblack creature.

Enchant creature When this Aura enters, tap enchanted creature and you become the monarch. Enchanted creature doesn't untap during its controller's untap step unless that player is the monarch.

Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.

Target creature gets -4/-4 until end of turn.

When this creature enters, return target creature to its owner's hand.

Counter target noncreature spell.

{T}, Sacrifice this artifact: Exile target player's graveyard. When this artifact is put into a graveyard from the battlefield, you may pay {B}. If you do, draw a card.

When this enchantment enters, target creature phases out until this enchantment leaves the battlefield. Tap that creature as it phases in this way. (Auras and Equipment phase out with it. While permanents are phased out, they're treated as though they don't exist.)

Return target creature to its owner's hand. Untap up to two lands.

If you control a Swamp, you may pay 4 life rather than pay this spell's mana cost. Destroy target nonblack creature. It can't be regenerated.

Choose one or both — • Counter target creature spell. • Return target creature card from your graveyard to your hand.

Target creature gets -1/-1 until end of turn. Morbid — That creature gets -13/-13 until end of turn instead if a creature died this turn.

Destroy target nonblack creature. It can't be regenerated. You lose life equal to that creature's toughness.

Destroy target non-Vampire, non-Werewolf, non-Zombie creature.

Exile up to two target creatures you control, then return those cards to the battlefield under their owner's control.

When this creature enters, you become the monarch. This creature can't be blocked by creatures the monarch controls.

Draw three cards, then put two cards from your hand on top of your library in any order.

Target player draws two cards. Flashback—{1}{U}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Look at the top four cards of your library. Put one of them into your hand and the rest into your graveyard. Flashback {6}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flying When this creature enters, draw two cards. Evoke {2}{U} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

You draw two cards and you lose 2 life.

Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Target player draws two cards and loses 2 life.

Deathtouch When this creature enters, you become the monarch.

Menace (This creature can't be blocked except by two or more creatures.) When this creature enters, you take the initiative.

Destroy target creature that isn't enchanted. It can't be regenerated. Transmute {1}{B}{B} ({1}{B}{B}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Sacrifice a creature: Regenerate this creature. Transmute {1}{B}{B} ({1}{B}{B}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

Target creature gets -3/-0 until end of turn. Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

Defender (This creature can't attack.) Flying Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

Search your library for a blue instant card, reveal that card, put it into your hand, then shuffle.

Counter target instant or sorcery spell. Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

Search your library for an instant card or a card with flash, reveal it, put it into your hand, then shuffle. Flashback {5}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

{T}: Add {C}. Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

This land enters tapped. {T}: Add {B}. Cycling {B} ({B}, Discard this card: Draw a card.)

This land enters tapped. When this land enters, exile target player's graveyard. {T}: Add {B}.

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

This land enters tapped. When this land enters, return a land you control to its owner's hand. {T}: Add {U}{B}.

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

({T}: Add {U} or {B}.) This land enters tapped.

({T}: Add {U}.)

This land enters tapped. {T}: Add {U}. Cycling {U} ({U}, Discard this card: Draw a card.)

When this land 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.

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

({T}: Add {U}.) This land enters tapped unless you control three or more other Islands. When this land enters untapped, you may put target instant or sorcery card from your graveyard on top of your library.

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

This land enters tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

{T}: Add {C}. {T}, Sacrifice this land: Target attacking creature without flying gets -1/-2 until end of turn.

{T}: Add {U}.

({T}: Add {B}.)

{T}: Add {B}.

This spell costs {3} less to cast if a creature died this turn. Flying, deathtouch

Defender {4}{U}: Venture into the dungeon. Activate only as a sorcery. (Enter the first room or advance to the next room.)

Flying When this creature enters, you take the initiative.

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

{T}: Add one mana of any color that a land an opponent controls could produce.

{T}, Sacrifice this artifact: Add one mana of any color.

{T}: Add {C}. {1}, {T}, Sacrifice this artifact: Draw a card.

When this creature enters, return target instant or sorcery card from your graveyard to your hand.

Flying When this creature enters, you may return target creature card from your graveyard to your hand.

Return up to one target creature card from your graveyard to your hand. Venture into the dungeon. (Enter the first room or advance to the next room.)

Defender When this creature enters, you may return target instant or sorcery card from your graveyard to your hand.