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

{T}: Add one mana of any color in your commander's color identity. Sacrifice Commander's Sphere: Draw a card.

{T}, Sacrifice a creature: Put a charge counter on Culling Dais. {1}, Sacrifice Culling Dais: Draw a card for each charge counter on Culling Dais.

Equipped creature gets +3/+2. Whenever Grafted Wargear becomes unattached from a permanent, sacrifice that permanent. Equip {0} ({0}: Attach to target creature you control. Equip only as a sorcery.)

{T}: Add {U}. {2}{U}: Put an hour counter on Midnight Clock. At the beginning of each upkeep, put an hour counter on Midnight Clock. When the twelfth hour counter is put on Midnight Clock, shuffle your hand and graveyard into your library, then draw seven cards. Exile Midnight Clock.

{T}: Add {C}. {1}, {T}, Sacrifice Mind Stone: Draw a card.

{1}{U}, Sacrifice Mnemonic Sphere: Draw two cards. Channel — {U}, Discard Mnemonic Sphere: Draw a card.

Sky Diamond enters the battlefield tapped. {T}: Add {U}.

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

{T}: Draw three cards. {2}{U}{U}: Return Arcanis the Omnipotent to its owner's hand.

Tap an untapped Wizard you control: Draw a card.

Body of Knowledge's power and toughness are each equal to the number of cards in your hand. You have no maximum hand size. Whenever Body of Knowledge is dealt damage, draw that many cards.

Flying As an additional cost to cast blue permanent spells, you may pay 2 life. Those spells cost {U} less to cast if you paid life this way. This effect reduces only the amount of blue mana you pay. Whenever you cast a blue permanent spell, draw a card.

{U}, Sacrifice a creature: Discard a card, then draw a card.

Flash (You may cast this spell any time you could cast an instant.) Whenever Illusory Ambusher is dealt damage, draw that many cards.

Flying Jace's Phantasm gets +4/+4 as long as an opponent has ten or more cards in their graveyard.

Flying Krovikan Mist's power and toughness are each equal to the number of Illusions on the battlefield.

Illusion creatures you control get +1/+1 and have hexproof. (They can't be the targets of spells or abilities your opponents control.)

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.

Flying {1}, Return a land you control to its owner's hand: Create a 1/1 blue Illusion creature token with flying.

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

Creature spells you cast that share a creature type with Mistform Warchief cost {1} less to cast. {T}: Mistform Warchief becomes the creature type of your choice until end of turn.

Whenever you cast an instant or sorcery spell, create a 1/1 blue Bird Illusion creature token with flying.

Flying Whenever you draw a card, put a +1/+1 counter on Oneirophage.

When Phantasmal Bear becomes the target of a spell or ability, sacrifice it.

Flying When Phantasmal Dragon becomes the target of a spell or ability, sacrifice it.

Trample When Phantasmal Dreadmaw becomes the target of a spell or ability, sacrifice it.

Flash When Phantom Steed enters the battlefield, exile another target creature you control until Phantom Steed leaves the battlefield. Whenever Phantom Steed attacks, create a tapped and attacking token that's a copy of the exiled card, except it's an Illusion in addition to its other types. Sacrifice that token at end of combat.

Psychosis Crawler's power and toughness are each equal to the number of cards in your hand. Whenever you draw a card, each opponent loses 1 life.

When Scourge of Fleets enters the battlefield, return each creature your opponents control with toughness X or less to its owner's hand, where X is the number of Islands you control.

Creatures you control with power or toughness 1 or less can't be blocked.

Other blue creatures you control have "Whenever this creature becomes tapped, draw a card, then discard a card." Other artifact creatures you control get +1/+1. {U/P}: Until end of turn, target creature you control becomes a blue artifact in addition to its other colors and types. Activate only as a sorcery. ({U/P} can be paid with either {U} or 2 life.)

Whenever you cast your first spell during each opponent's turn, draw a card.

Flash Enchant creature Enchanted creature loses all abilities and is a black Skeleton creature with base power and toughness 1/1. (It loses all other card types and creature types.)

Whenever you draw a card, put a foreshadow counter on Ominous Seas. Remove eight foreshadow counters from Ominous Seas: Create an 8/8 blue Kraken creature token. Cycling {2} ({2}, Discard this card: Draw a card.)

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.

Whenever a creature you control deals combat damage to a player, you may draw a card. Cycling {2} ({2}, Discard this card: Draw a card.)

If you would draw a card except the first one you draw in each of your draw steps, draw two cards instead.

If you would draw a card, draw two cards instead.

As an additional cost to cast this spell, sacrifice a blue permanent. Counter target spell.

Return all attacking creatures to their owner's hand.

Scry 2, then draw two cards. Foretell {1}{U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Draw two cards. Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

Draw a card for each Island you control, then discard two cards.

Draw two cards, then discard two cards. Untap up to three lands.

Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.) This spell costs {1} less to cast if it's bargained. Counter target spell.

Target player returns each commander they control from the battlefield to the command zone. Draw a card.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Draw two cards.

Counter target noncreature spell.

Scry 1. Draw a card.

Draw two cards, then sacrifice a permanent.

Draw two cards.

Draw X cards. For each card drawn this way, discard a card unless you sacrifice a permanent.

Exile target artifact or creature. Its controller creates a 4/4 blue and red Elemental creature token.

Draw three cards. Then discard two cards unless you discard a basic land card.

({T}: Add {U}.)

Choose a creature type. Draw a card for each permanent you control of that type.

For each creature, its controller sacrifices a permanent unless they pay {1}.

Exile target artifact or creature. Its controller creates a 1/1 blue Bird creature token with flying. Foretell {U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Draw a card. Scry 2.