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.

Target player draws X cards. Shuffle Blue Sun's Zenith into its owner's library.

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

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

Counter target spell.

Return target tapped creature to its owner's hand. Draw a card.

Draw a card for each attacking creature.

Choose one — • Counter target multicolored spell. • Destroy target multicolored permanent.

Draw a card. Madness {U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Until end of turn, target creature loses all abilities and has base power and toughness 0/1.

Draw a card.

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

Whenever a creature you control deals combat damage to a player, you may draw a card. {1}{U}, {T}: Creatures your opponents control attack this turn if able.

You have no maximum hand size. {T}: Add one mana of any color.

When this artifact enters, you may search your library for a basic land card, reveal it, then shuffle and put that card on top. {1}, Sacrifice this artifact: Draw a card.

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

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

{T}, Put a page counter on this artifact: Scry 1. (Look at the top card of your library. You may put that card on the bottom.) {2}, {T}, Put a page counter on this artifact: Draw a card. When there are four or more page counters on this artifact, exile it. If you do, you gain 4 life.

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.) As this artifact enters, choose a creature type. Creatures you control of the chosen type get +2/+2.

Blue spells you cast cost {1} less to cast.

{4}, {T}, Discard your hand: Draw a card for each creature you control.

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

At the beginning of your end step, each opponent loses life equal to the number of tapped creatures you control.

This land enters tapped unless you control an Island. {T}: Add {U}. {U}, {T}: The next spell you cast this turn has improvise. (Your artifacts can help cast that spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)

This land enters tapped unless you control a Mountain. {T}: Add {R}. {R}, {T}, Exert this land: Add {R}{R}. If that mana is spent on a creature spell, it gains haste until end of turn. (An exerted permanent won't untap during your next untap step.)

{T}: Add {C}. {U/R}, {T}: Add {U}{U}, {U}{R}, or {R}{R}.

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

This land enters tapped. {T}: Add {R}. Cycling {1}{R} ({1}{R}, Discard this card: Draw a card.)

This land enters tapped. {T}: Add {U}. Cycling {1}{U} ({1}{U}, Discard this card: Draw a card.)

{T}: Add {C}. {1}{U}{R}, {T}: Draw a card, then discard a card.

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

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

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

({T}: Add {U}.)

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

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

({T}: Add {R}.)

This land enters tapped. {T}: Add {C}. {2}, {T}, Sacrifice this land: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

You have no maximum hand size. {T}: Add {C}.

This land enters tapped. {T}: Add {U} or {R}. {U}{R}: Until end of turn, this land becomes a 2/1 blue and red Elemental creature with "During your turn, this creature has first strike." It's still a land. Whenever this land attacks, scry 1.

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

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

This land enters tapped unless you control two or more other lands. {T}: Add {U} or {R}.

This land enters tapped unless you control an Island or a Mountain. {T}: Add {U} or {R}.

As Three Tree City enters, choose a creature type. {T}: Add {C}. {2}, {T}: Choose a color. Add an amount of mana of that color equal to the number of creatures you control of the chosen type.

Flying Whenever this creature 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.

Magecraft — Whenever you cast or copy an instant or sorcery spell, draw a card.

Changeling (This card is every creature type.) As this creature enters, choose a creature type. Whenever another creature you control of the chosen type enters, put a +1/+1 counter on this creature.

If this creature hasn't been exerted this turn, you may exert it as it attacks. When you do, untap all other creatures you control and after this phase, there is an additional combat phase. (An exerted creature won't untap during your next untap step.)

Flying You have no maximum hand size. Whenever a creature token you control deals combat damage to a player, draw a card.

Whenever you draw your second card each turn, create a token that's a copy of this creature.

Flash At the beginning of your end step, draw seven cards. Each opponent's maximum hand size is reduced by seven.

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

{1}{R}, {T}, Sacrifice this creature: Each player discards their hand, then draws seven cards.

Flying Instant and sorcery spells you cast cost {1} less to cast.

Whenever another creature you control enters, this creature deals 1 damage to each opponent. Unearth {R} ({R}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

This spell can't be countered. Flying Whenever you draw a card, Niv-Mizzet deals 1 damage to any target. Whenever a player casts an instant or sorcery spell, you draw a card.

You have no maximum hand size. At the beginning of your upkeep, if you have exactly thirteen cards in your hand, you win the game. {3}{U}: Draw a card.

+2: Draw two cards, then put a card from your hand on the bottom of your library. −2: Create a blue Dog Illusion creature token with "This token's power and toughness are each equal to twice the number of cards in your hand." −10: Exchange your hand and library, then shuffle. You get an emblem with "You have no maximum hand size."

At the beginning of each player's end step, that player draws a card. If the player is your opponent and has four or more cards in hand, this enchantment deals 2 damage to that player.

Sacrifice a creature: This enchantment deals 1 damage to any target.

Enchant creature Enchanted creature has base power and toughness 0/2.

Whenever a creature you control enters, this enchantment deals 1 damage to each opponent.

Enchant creature, land, or planeswalker Enchanted permanent is a colorless land with "{T}: Add {C}" and loses all other card types and abilities.

As this enchantment enters, choose a creature type. Whenever a creature you control of the chosen type enters or attacks, draw 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}.

Whenever a creature you control with power 2 or less attacks, this enchantment deals 1 damage to the player or planeswalker that creature is attacking.

Enchant player At the beginning of each of enchanted player's postcombat main phases, there is an additional beginning phase after this phase. (The end step happens after the added untap, upkeep, and draw steps.)

Whenever a creature you control attacks, it gets +1/+0 until end of turn for each other attacking creature that shares a creature type with it.

Whenever you cast an instant or sorcery spell, you may copy that spell. You may choose new targets for the copy.

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

Each player shuffles their hand and graveyard into their library, then draws seven cards. If it's your turn, end the turn. (Exile all spells and abilities from the stack, including this card. Discard down to your maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)

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

Draw X cards.

The next instant or sorcery spell you cast this turn can't be countered. Draw a card.

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.)

Untap all creatures that attacked this turn. After this main phase, there is an additional combat phase followed by an additional main phase.

Draw a card. Scry 2.