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

{1}, {T}: Add {W}{U}.

{2}, {T}: Draw a card, then discard a card. Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Equipped creature gets +1/+1. Whenever equipped creature attacks, venture into the dungeon. (Enter the first room or advance to the next room.) Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

{1}, {T}: Add {U}{B}.

{T}: Add three mana of any one color.

{T}: Add {W}, {U}, or {B}.

{1}, {T}: Add {W}{B}.

If an artifact or creature entering the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

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

{T}: Add {C}. {T}: Add {U} or {B}. Talisman of Dominance deals 1 damage to you.

{T}: Add {C}. {T}: Add {W} or {B}. Talisman of Hierarchy deals 1 damage to you.

{T}: Add {C}. {T}: Add {W} or {U}. Talisman of Progress deals 1 damage to you.

Flying When Abhorrent Overlord enters the battlefield, create a number of 1/1 black Harpy creature tokens with flying equal to your devotion to black. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.) At the beginning of your upkeep, sacrifice a creature.

When Acererak the Archlich enters the battlefield, if you haven't completed Tomb of Annihilation, return Acererak the Archlich to its owner's hand and venture into the dungeon. Whenever Acererak the Archlich attacks, for each opponent, you create a 2/2 black Zombie creature token unless that player sacrifices a creature.

Flying Whenever Ancient Brass Dragon deals combat damage to a player, roll a d20. When you do, put any number of target creature cards with total mana value X or less from graveyards onto the battlefield under your control, where X is the result.

Flying Whenever Ancient Gold Dragon deals combat damage to a player, roll a d20. You create a number of 1/1 blue Faerie Dragon creature tokens with flying equal to the result.

Flying Whenever Ancient Silver Dragon deals combat damage to a player, roll a d20. Draw cards equal to the result. You have no maximum hand size for the rest of the game.

Flying Whenever Archon of Cruelty enters the battlefield or attacks, target opponent sacrifices a creature or planeswalker, discards a card, and loses 3 life. You draw a card and gain 3 life.

Flying When Eccentric Apprentice enters the battlefield, venture into the dungeon. (Enter the first room or advance to the next room.) At the beginning of combat on your turn, if you've completed a dungeon, up to one target creature becomes a Bird with base power and toughness 1/1 and flying until end of turn.

Menace Whenever Elder Brain attacks a player, exile all cards from that player's hand, then they draw that many cards. You may play lands and cast spells from among the exiled cards for as long as they remain exiled. If you cast a spell this way, you may spend mana as though it were mana of any color to cast it.

Room abilities of dungeons you own trigger an additional time.

Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.) At the beginning of your end step, if you have the initiative, draw a card. Draw another card if you've completed a dungeon. Choose a Background (You can have a Background as a second commander.)

Whenever you attack, target attacking creature can't be blocked this turn. It connives. Then choose another attacking creature with lesser power. That creature gains double strike until end of turn. (To have a creature connive, draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on that creature.)

Flying {T}: Draw a card, then discard a card. {X}: Likeness Looter becomes a copy of target creature card in your graveyard with mana value X, except it has flying and this ability. Activate only as a sorcery.

Flash Flying Whenever Malcolm, Alluring Scoundrel deals combat damage to a player, put a chorus counter on it. Draw a card, then discard a card. If there are four or more chorus counters on Malcolm, you may cast the discarded card without paying its mana cost.

{T}: Draw a card, then discard a card.

Creatures you control can't be blocked except by legendary creatures. Whenever one or more creatures you control deal combat damage to a player, venture into the dungeon. (Enter the first room or advance to the next room.)

Vigilance Whenever Nadaar, Selfless Paladin enters the battlefield or attacks, venture into the dungeon. (Enter the first room or advance to the next room.) Other creatures you control get +1/+1 as long as you've completed a dungeon.

{T}: Draw a card, then discard a card. {2}{U}{B}, {T}, Sacrifice Obsessive Stitcher: Return target creature card from your graveyard to the battlefield.

{T}: Search your library for a card, put it into your graveyard, then shuffle. If it's an instant or sorcery card, put a +1/+1 counter on Oriq Loremage.

{T}, Sacrifice two other creatures: Any number of target players each lose 2 life and sacrifice a creature. You add {B}{B} and draw a card.

Flying, lifelink Whenever Radiant Solar or another nontoken creature enters the battlefield under your control, venture into the dungeon. (Enter the first room or advance to the next room.) {W}, Discard Radiant Solar: Venture into the dungeon and you gain 3 life.

When Ravenloft Adventurer enters the battlefield, you take the initiative. If a creature an opponent controls would die, instead exile it and put a hit counter on it. Whenever Ravenloft Adventurer attacks, if you've completed a dungeon, defending player loses 1 life for each card they own in exile with a hit counter on it.

Deathtouch When Rilsa Rael, Kingpin enters the battlefield, you take the initiative. Whenever you attack, target attacking creature gains deathtouch until end of turn. If you've completed a dungeon, that creature also gets +5/+0 and gains first strike and menace until end of turn.

Menace At the beginning of your end step, if you have the initiative, create a Treasure token. Create three of those tokens instead if you've completed a dungeon. Choose a Background (You can have a Background as a second commander.)

When Seasoned Dungeoneer enters the battlefield, you take the initiative. Whenever you attack, target attacking Cleric, Rogue, Warrior, or Wizard gains protection from creatures until end of turn. It explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on the creature, then put the card back or put it into your graveyard.)

Flying Spear of the Void Dragon — Whenever Shard of the Void Dragon attacks, each opponent sacrifices a nonland permanent. Matter Absorption — Whenever an artifact is put into a graveyard from the battlefield or is put into exile from the battlefield, put two +1/+1 counters on Shard of the Void Dragon.

Deathtouch Exploit (When this creature enters the battlefield, you may sacrifice a creature.) When Sidisi, Undead Vizier exploits a creature, you may search your library for a card, put it into your hand, then shuffle.

Whenever another creature dies, or a creature card is put into a graveyard from anywhere other than the battlefield, or a creature card leaves your graveyard, Syr Konrad, the Grim deals 1 damage to each opponent. {1}{B}: Each player mills a card. (They each put the top card of their library into their graveyard.)

When Tomb of Horrors Adventurer enters the battlefield, you take the initiative. Whenever you cast your second spell each turn, copy it. If you've completed a dungeon, copy that spell twice instead. You may choose new targets for the copies. (A copy of a permanent spell becomes a token.)

Deathtouch As long as it's your turn, Triumphant Adventurer has first strike. Whenever Triumphant Adventurer attacks, venture into the dungeon. (Enter the first room or advance to the next room.)

When White Plume Adventurer enters the battlefield, you take the initiative. At the beginning of each opponent's upkeep, untap a creature you control. If you've completed a dungeon, untap all creatures you control instead.

At the beginning of your precombat main phase, choose one or more — • Sell Contraband — Create a Treasure token. You lose 1 life. • Buy Information — Draw a card. You lose 2 life. • Hire a Mercenary — Create a 3/2 colorless Shapeshifter creature token with changeling. You lose 3 life. (It has every creature type.)

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

Whenever you attack, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") Whenever you sacrifice a Clue, venture into the dungeon. (Enter the first room or advance to the next room.)

When Undercellar Sweep enters the battlefield, you take the initiative. Whenever you attack, if you or a player you're attacking has the initiative, you create two 1/1 white Soldier creature tokens that are tapped and attacking.

Counter target spell.

If you control a commander, you may cast this spell without paying its mana cost. Exile target creature.

This spell can't be countered. Counter target noncreature spell.

If you control a commander, you may cast this spell without paying its mana cost. Counter target noncreature spell.

Destroy target permanent. Its controller creates a 3/3 green Elephant creature token.

Destroy target creature or enchantment.

Exile target creature. Its controller gains life equal to its power.

Azorius Chancery enters the battlefield tapped. When Azorius Chancery enters the battlefield, return a land you control to its owner's hand. {T}: Add {W}{U}.

Indestructible {T}: Add {C}. {5}, {T}: Add five mana in any combination of colors.

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

{1}, {T}: Add {U}{B}.

Deserted Beach enters the battlefield tapped unless you control two or more other lands. {T}: Add {W} or {U}.

Dimir Aqueduct enters the battlefield tapped. When Dimir Aqueduct enters the battlefield, return a land you control to its owner's hand. {T}: Add {U}{B}.

Drowned Catacomb enters the battlefield tapped unless you control an Island or a Swamp. {T}: Add {U} or {B}.

Dungeon Descent enters the battlefield tapped. {T}: Add {C}. {4}, {T}, Tap an untapped legendary creature you control: Venture into the dungeon. Activate only as a sorcery. (Enter the first room or advance to the next room.)

{T}, Pay 1 life, Sacrifice Flooded Strand: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.

{T}: Add {C}. {2}, {T}: Each player draws a card, then discards a card.

Glacial Fortress enters the battlefield tapped unless you control a Plains or an Island. {T}: Add {W} or {U}.

({T}: Add {W} or {B}.) As Godless Shrine enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

({T}: Add {W} or {U}.) As Hallowed Fountain enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

{T}: Add {C}. {T}, Sacrifice a creature: You gain 1 life.

({T}: Add {U}.)

({T}: Add {U}.)

Isolated Chapel enters the battlefield tapped unless you control a Plains or a Swamp. {T}: Add {W} or {B}.

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

Morphic Pool enters the battlefield tapped unless you have two or more opponents. {T}: Add {U} or {B}.

({T}: Add {W}.)

({T}: Add {W}.)

{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

({T}: Add {W}, {U}, or {B}.) Raffine's Tower enters the battlefield tapped. Cycling {3} ({3}, Discard this card: Draw a card.)

{T}: Add one mana of any type that a land you control could produce.

Sea of Clouds enters the battlefield tapped unless you have two or more opponents. {T}: Add {W} or {U}.

Shattered Sanctum enters the battlefield tapped unless you control two or more other lands. {T}: Add {W} or {B}.

Shipwreck Marsh enters the battlefield tapped unless you control two or more other lands. {T}: Add {U} or {B}.

{1}, {T}: Add {W}{U}.

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

Vault of Champions enters the battlefield tapped unless you have two or more opponents. {T}: Add {W} or {B}.

Dakkon, Shadow Slayer enters the battlefield with a number of loyalty counters on him equal to the number of lands you control. +1: Surveil 2. −3: Exile target creature. −6: You may put an artifact card from your hand or graveyard onto the battlefield.