{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.

Players have no maximum hand size. {X}{X}, {T}: Each player draws X cards. {2}{U}, {T}: Each opponent mills cards equal to the number of cards in their hand.

At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.

Imprint — When Knowledge Pool enters the battlefield, each player exiles the top three cards of their library. Whenever a player casts a spell from their hand, that player exiles it. If the player does, they may cast a spell from among other cards exiled with Knowledge Pool without paying its mana cost.

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

When Author of Shadows enters the battlefield, exile all opponents' graveyards. Choose a nonland card exiled this way. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell.

Flying If an opponent would lose life during your turn, they lose twice that much life instead. (Damage causes loss of life.)

Shadow (This creature can block or be blocked by only creatures with shadow.) If a card would be put into an opponent's graveyard from anywhere, instead exile it with a void counter on it. {T}, Sacrifice Dauthi Voidwalker: Choose an exiled card an opponent owns with a void counter on it. You may play it this turn without paying its mana cost.

Your opponents can't cast spells from anywhere other than their hands.

{U}{U}, {T}: Gain control of target legendary permanent. (This effect lasts indefinitely.)

Devoid (This card has no color.) Flying When Inverter of Truth enters the battlefield, exile all cards from your library face down, then shuffle all cards from your graveyard into your library.

At the beginning of each player's draw step, that player draws an additional card.

If you would draw a card while your library has no cards in it, you win the game instead.

Each opponent can't cast noncreature spells with mana value greater than the number of lands that player controls. Whenever an opponent casts a spell, if no mana was spent to cast it, counter that spell.

Players can't draw cards. At the beginning of each player's draw step, that player loses 3 life, searches their library for a card, puts it into their hand, then shuffles.

When Noble Benefactor dies, each player may search their library for a card and put that card into their hand. Then each player who searched their library this way shuffles.

Flash If an opponent would draw a card except the first one they draw in each of their draw steps, instead that player skips that draw and you draw a card.

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

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.

When Phage the Untouchable enters the battlefield, if you didn't cast it from your hand, you lose the game. Whenever Phage deals combat damage to a creature, destroy that creature. It can't be regenerated. Whenever Phage deals combat damage to a player, that player loses the game.

Each player can't cast more than one spell each turn.

Rather than pay the mana cost for a spell, its controller may discard a card that shares a color with that spell.

Flash When Dress Down enters the battlefield, draw a card. Creatures lose all abilities. At the beginning of the end step, sacrifice Dress Down.

Whenever an opponent casts a spell, that player draws seven cards.

Whenever a player casts an instant or sorcery spell, each other player copies that spell. Each of those players may choose new targets for their copy.

Cumulative upkeep {2} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) When Illusions of Grandeur enters the battlefield, you gain 20 life. When Illusions of Grandeur leaves the battlefield, you lose 20 life.

Hexproof You can't lose the game. Whenever you gain life, draw that many cards. Whenever you lose life, for each 1 life you lost, exile a permanent you control or a card from your hand or graveyard. When Lich's Mastery leaves the battlefield, you lose the game.

At the beginning of each player's upkeep, that player chooses target player who controls more lands than they do and is their opponent. The first player may search their library for a basic land card, put that card onto the battlefield, then shuffle.

When Proft's Eidetic Memory enters the battlefield, draw a card. You have no maximum hand size. At the beginning of combat on your turn, if you've drawn more than one card this turn, put X +1/+1 counters on target creature you control, where X is the number of cards you've drawn this turn minus one.

Each player can't cast more than one spell each turn.

As Struggle for Project Purity enters the battlefield, choose Brotherhood or Enclave. • Brotherhood — At the beginning of your upkeep, each opponent draws a card. You draw a card for each card drawn this way. • Enclave — Whenever a player attacks you with one or more creatures, that player gets twice that many rad counters.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) You can't lose the game this turn and your opponents can't win the game this turn. Until end of turn, damage that would reduce your life total to less than 1 reduces it to 1 instead.

Exile target nonland permanent. You lose 3 life.

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.

Counter target spell.

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

Search your library for an artifact or enchantment card, reveal it, then shuffle and put that card on top.

If it's not your turn, you may exile a blue card from your hand rather than pay this spell's mana cost. Counter target noncreature spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost. Counter target spell.

Destroy target artifact, enchantment, or planeswalker.

Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.

Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.

Counter target noncreature spell.

Counter target spell. At the beginning of your next upkeep, pay {3}{U}{U}. If you don't, you lose the game.

Destroy target nonblack creature. At the beginning of your next upkeep, pay {2}{B}. If you don't, you lose the game.

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

{T}: Add {C}. {T}: Add {W} or {U}. Adarkar Wastes deals 1 damage to you.

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

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

{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 {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 {U}.)

{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}, 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 {W} or {B}.)

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

({T}: Add {B}.)

({T}: Add {W} or {U}.)

{T}: Add {C}. {T}: Add {U} or {B}. Underground River deals 1 damage to you.

({T}: Add {U} or {B}.)

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

Destroy all creatures. They can't be regenerated.

Search your library for a card, put that card into your hand, then shuffle.

You may pay {2}{W}{W} rather than pay this spell's mana cost. If the {2}{W}{W} cost was paid, an opponent chooses up to two nonland permanents they control and returns them to their owner's hand. Destroy all nonland permanents.

Target player gains control of target permanent you control.

Exile target nonland permanent. Each player other than its controller creates a token that's a copy of it.

Join forces — Starting with you, each player may pay any amount of mana. Each player draws X cards, where X is the total amount of mana paid this way.

Target player draws cards equal to half the number of cards in their library and loses half their life. Round up each time.

Choose two target players. Each of them searches their library for a card, then shuffles and puts that card on top.

Join forces — Starting with you, each player may pay any amount of mana. Each player mills X cards, where X is the total amount of mana paid this way.

Each player may put an artifact, creature, enchantment, or land card from their hand onto the battlefield.

As an additional cost to cast this spell, pay X life. All creatures get -X/-X until end of turn.

Destroy target permanent.