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

Imprint — When this artifact enters, you may exile a nonartifact, nonland card from your hand. {T}: Add one mana of any of the exiled card's colors.

{T}: Add one mana of any color among legendary creatures and planeswalkers you control.

If this artifact would enter, you may discard a land card instead. If you do, put this artifact onto the battlefield. If you don't, put it into its owner's graveyard. {T}: Add one mana of any color.

When this creature dies, you may exile it. If you do, search your library for an enchantment card, put that card onto the battlefield, then shuffle.

Flash Whenever an opponent searches their library, you gain 1 life and draw a card.

Flying, deathtouch When this creature enters, draw a card.

Creatures you control with power 2 or less can't be blocked by creatures with power 3 or greater. If an ability of a creature you control with power 2 or less triggers, that ability triggers an additional time.

Avoidance — Whenever you cast a noncreature spell, exile up to one target nonland permanent you control, then return that card to the battlefield under its owner's control.

Whenever an opponent casts their first noncreature spell each turn, draw a card unless that player pays {X}, where X is this creature's power.

Flash Flying Whenever an opponent draws their second card each turn, you draw a card. {3}{U}: Each player draws a card.

During your turn, your opponents can't cast spells or activate abilities of artifacts, creatures, or enchantments.

Whenever a player casts their second spell each turn, you lose 1 life and create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

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.

Flash When this creature enters and whenever an opponent draws a card except the first one they draw in each of their draw steps, this creature deals 1 damage to any target. Then amass Orcs 1.

When this creature enters, look at the top X cards of your library, where X is your devotion to blue. Put up to one of them on top of your library and the rest on the bottom of your library in a random order. If X is greater than or equal to the number of cards in your library, you win the game. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)

Enchant creature Whenever enchanted creature deals damage to an opponent, you may draw a card.

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

Enchant creature As long as enchanted creature is blue, it gets +1/+1 and has "Whenever this creature deals damage to an opponent, draw a card." As long as enchanted creature is black, it gets +1/+1 and has "Whenever this creature deals damage to an opponent, that player discards a card."

Cumulative upkeep {1} (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.) Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays {4}.

Skip your draw step. Whenever you discard a card, exile that card from your graveyard. Pay 1 life: Exile the top card of your library face down. Put that card into your hand at the beginning of your next end step.

You may cast spells from your hand without paying their mana costs.

Flash (You may cast this spell any time you could cast an instant.) Enchant creature Whenever enchanted creature deals damage to an opponent, you may draw a card.

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

You may pay {1}{B} rather than pay this spell's mana cost. If the {1}{B} cost was paid, an opponent draws a card. Exile target creature or planeswalker.

You may exile two blue cards from your hand rather than pay this spell's mana cost. Gain control of target noncreature spell. You may choose new targets for it. (If that spell is an artifact, enchantment, or planeswalker, the permanent enters under your control.)

You may pay 1 life and exile a black card from your hand rather than pay this spell's mana cost. Distribute two -2/-1 counters among one or two target creatures.

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

Choose a card name. Exile the top six cards of your library, then reveal cards from the top of your library until you reveal a card with the chosen name. Put that card into your hand and exile all other cards revealed this way.

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) Look at the top seven cards of your library. Put two of them into your hand and the rest on the bottom of your library in any order.

({B/P} can be paid with either {B} or 2 life.) Target creature gets -5/-5 until end of turn.

You may exile a blue card with mana value X from your hand rather than pay this spell's mana cost. Counter target spell if its mana value is X.

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

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

You may sacrifice a nontoken blue creature rather than pay this spell's mana cost. Counter target spell.

You may sacrifice a nontoken white creature rather than pay this spell's mana cost. Until end of turn, your life total can't change, and permanents you control gain hexproof and indestructible.

You may sacrifice a nontoken black creature rather than pay this spell's mana cost. Each opponent sacrifices a creature or planeswalker with the greatest mana value among creatures and planeswalkers they control.

If you control a commander, you may cast this spell without paying its mana cost. Creatures you control gain indestructible until end of turn.

You may discard an Island card and another card rather than pay this spell's mana cost. Counter target spell.

If it's not your turn, you may exile a black card from your hand rather than pay this spell's mana cost. Destroy all creatures that entered this turn.

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.

You may return two Islands you control to their owner's hand rather than pay this spell's mana cost. Draw two cards.

As an additional cost to cast this spell, you may exile any number of white cards from your hand. This spell costs {2} less to cast for each card exiled this way. Exile target artifact, creature, or enchantment with mana value X or less.

As an additional cost to cast this spell, you may exile any number of blue cards from your hand. This spell costs {2} less to cast for each card exiled this way. Up to X target creatures phase out. (While they're phased out, they're treated as though they don't exist. Each one phases in before its controller untaps during their next untap step.)

As an additional cost to cast this spell, you may exile any number of black cards from your hand. This spell costs {2} less to cast for each card exiled this way. March of Wretched Sorrow deals X damage to target creature or planeswalker and you gain X life.

If an opponent cast three or more spells this turn, you may pay {0} rather than pay this spell's mana cost. Exile any number of target spells.

You may exile a blue card from your hand rather than pay this spell's mana cost. Change the target of target spell with a single target.

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

If an opponent had three or more cards put into their graveyard from anywhere this turn, you may pay {0} rather than pay this spell's mana cost. Exile target player's graveyard.

You may exile a white card with mana value X from your hand rather than pay this spell's mana cost. The next X damage that a source of your choice would deal to you and/or creatures you control this turn is dealt to any target instead.

You may exile a black card with mana value X from your hand rather than pay this spell's mana cost. Target creature gets -X/-X until end of turn.

If an opponent controls a Mountain and you control a Plains, you may cast this spell without paying its mana cost. Prevent all damage that would be dealt this turn to creatures you control.

If you control a Plains, you may tap an untapped creature you control rather than pay this spell's mana cost. All damage that would be dealt to target creature this turn is dealt to you instead.

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.

Exile the top card of your library. You may put that card into your hand unless it has the same name as another card exiled this way. Repeat this process until you put a card into your hand or you exile two cards with the same name, whichever comes first.

Target creature gets +1/+0 and gains infect until end of turn. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

{T}: Add {C}{C}. This land deals 2 damage to you.

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

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

Whenever this land becomes tapped, it deals 1 damage to you. {T}: Add one mana of any color.

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

If this card is in your opening hand and you're not the starting player, you may begin the game with Gemstone Caverns on the battlefield with a luck counter on it. If you do, exile a card from your hand. {T}: Add {C}. If Gemstone Caverns has a luck counter on it, instead add one mana of any color.

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

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

({T}: Add {U}.)

{T}, Pay 1 life: Add one mana of any color.

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

({T}: Add {W} or {U}.) This land enters tapped. When this land enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

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

{T}: Add {U}. Channel — {3}{U}, Discard this card: Return target artifact, creature, enchantment, or planeswalker to its owner's hand. This ability costs {1} less to activate for each legendary creature you control.

{T}: Add {C}. {T}, Sacrifice a creature: Add {B}{B}.

({T}: Add {W}.)

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

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

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

({T}: Add {U}.)

({T}: Add {W}.)

({T}: Add {B}.)

({T}: Add {B}.)

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

({T}: Add {U} or {B}.) This land enters tapped. When this land enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

{T}: Add {C}. {T}: Add {U} or {B}. This land deals 1 damage to you.

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

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

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

As an additional cost to cast this spell, sacrifice a creature. Search your library for a card, put that card into your hand, then shuffle.

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

Destroy all nonland permanents with mana value 1 or less. Cycling {2} ({2}, Discard this card: Draw a card.)

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

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) Draw three cards.

{T}: Add {C}. {T}: Add {W} or {U}. This land deals 1 damage to you.

{T}: Add {C}. {T}: Add {W} or {B}. This land deals 1 damage to you.

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

Return target creature card from your graveyard to the battlefield. Flashback—Sacrifice three creatures. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

If it's not your turn, you may exile a white card from your hand rather than pay this spell's mana cost. Flash Creatures you control get +1/+1.