Flash

As Disruptor Flute enters, choose a card name.

Spells with the chosen name cost more to cast.

Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)

When you cast this spell, target opponent reveals their hand. You choose from it a nonland card with mana value 3 or less and a card with mana value 4 or greater. That player discards those cards.

Return target creature card from a graveyard to its owner's hand.

Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)

Each player chooses a creature they control. Destroy the rest.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

, , Discard a card: 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.

Flying

Whenever you cast an instant or sorcery spell, choose one —

• Djinn of the Fountain gets +1/+1 until end of turn.

• Exile Djinn of the Fountain. Return it to the battlefield under its owner's control at the beginning of the next end step.

• Scry 1.

Choose one —

• Target opponent exiles a creature they control.

• Target opponent reveals their hand. You choose a nonland card from it. Exile that card.

Flying

When Doomsday Specter enters, return a blue or black creature you control to its owner's hand.

Whenever Doomsday Specter deals combat damage to a player, look at that player's hand and choose a card from it. The player discards that card.

Choose another player. Look at that player's hand and choose a card other than a basic land card from it. They discard that card. At the beginning of the first upkeep in your next game with that player, look at that player's hand and choose a card other than a basic land card from it. They discard that card.

Choose another player. You gain 5 life. At the beginning of the first upkeep in your next game with that player, you gain 5 life.

Choose another player. You draw two cards. At the beginning of the first upkeep in your next game with that player, you draw two cards.

When you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.

Flash

When Downwind Ambusher enters, choose one —

• Target creature an opponent controls gets -1/-1 until end of turn.

• Destroy target creature an opponent controls that was dealt damage this turn.

Flying, trample

When Dragonlord Atarka enters, it deals 5 damage divided as you choose among any number of target creatures and/or planeswalkers your opponents control.

At the beginning of your end step, bolster X, where X is the number of tapped creatures you control. (Choose a creature with the least toughness among creatures you control and put X +1/+1 counters on it.)

As Drawn Together enters, choose an artist.

Creatures with art by the chosen artist get +2/+2.

Whenever a Swamp you control enters, choose one —

• You draw a card and you lose 1 life.

• Dread Presence deals 2 damage to any target and you gain 2 life.

Creatures don't untap during their controllers' untap steps.

At the beginning of each player's upkeep, that player may choose any number of tapped nongreen creatures they control and pay for each creature chosen this way. If the player does, untap those creatures.

Target opponent reveals their hand. You choose an artifact or creature card from it, then choose an artifact or creature card from their graveyard. Exile the chosen cards.

Vanishing 2 (This creature enters with two time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)

Whenever a player casts their second spell each turn, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Spectacle (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.)

Target player reveals their hand. You choose a nonland card from it. That player discards that card.

Choose one —

• You gain 5 life.

• Counter target spell.

• Target creature gets -2/-2 until end of turn.

Flying

Whenever a Dragon you control attacks, bolster 2. (Choose a creature with the least toughness among creatures you control and put two +1/+1 counters on it.)

Bolster 4. (Choose a creature with the least toughness among creatures you control and put four +1/+1 counters on it.)

Choose one. If you control a commander as you cast this spell, you may choose both instead.

• Target player draws X cards.

• Target player mills twice X cards.

Target creature gets -4/-4 until end of turn. Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

When Druid of Purification enters, starting with you, each player may choose an artifact or enchantment you don't control. Destroy each permanent chosen this way.

When you next cast an instant or sorcery spell with mana value 4 or less this turn, copy that spell. You may choose new targets for the copy.

Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Look at the top ten cards of your library, exile up to two creature cards from among them, then shuffle. Target opponent may choose one of the exiled cards and put it onto the battlefield under their control. Put the rest onto the battlefield under your control.

When Duelists' Convocation International enters the battlefield, choose a 10-digit number at random and write it down.

Whenever you play a land or cast a spell, if it shares a mana value with one or more uncrossed digits in the chosen number, cross out one of those digits and draw a card. Then if all ten digits are crossed out, you win the game.

Choose up to one creature. Destroy the rest.

Whenever Durnan attacks, look at the top four cards of your library. You may exile a creature card from among them. Put the rest on the bottom of your library in any order. For as long as that card remains exiled, you may cast it. That spell has undaunted. (It costs ​ less to cast for each opponent.)

Choose a Background (You can have a Background as a second commander.)

Dwarven Hold enters tapped.

You may choose not to untap Dwarven Hold during your untap step.

At the beginning of your upkeep, if Dwarven Hold is tapped, put a storage counter on it.

, Remove any number of storage counters from Dwarven Hold: Add for each storage counter removed this way.

Haste

You may activate abilities of other creatures you control as though those creatures had haste.

: When you next activate an ability that isn't a mana ability this turn by spending four or more mana to activate it, copy that ability. You may choose new targets for the copy.

Choose one —

• Target opponent loses 1 life and you gain 1 life.

• Exile up to three target cards from a single graveyard.

• Target creature gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)

Level up (: Put a level counter on this. Level up only as a sorcery.)

LEVEL 2-3

2/4

, : Copy target instant or sorcery spell. You may choose new targets for the copy.

LEVEL 4+

2/5

, : Copy target instant or sorcery spell twice. You may choose new targets for the copies.

If a triggered ability of a colorless spell you control or another colorless permanent you control triggers, that ability triggers an additional time.

Whenever you cast a colorless spell, copy it. You may choose new targets for the copy. (A copy of a permanent spell becomes a token.)

Creature tokens you control have menace.

Whenever you attack a player, choose target nontoken creature that's attacking that player. Create a token that's a copy of that creature, except it's 1/1. The token enters tapped and attacking that player. Sacrifice it at the beginning of the next end step.

Search your library and graveyard for up to four creature cards with different names that each have mana value X or less and reveal them. An opponent chooses two of those cards. Shuffle the chosen cards into your library and put the rest onto the battlefield. Exile Ecological Appreciation.

Target opponent reveals their hand. You choose a nonland card from it. That player discards that card. If you don't control a Faerie, exile a card from your hand.

Choose three. You may choose the same mode more than once.

• Target creature gets +3/-3 until end of turn.

• Exile target nonland permanent, then return it to the battlefield tapped under its owner's control.

• Create a 1/1 colorless Eldrazi Scion creature token with "Sacrifice this creature: Add ."

Magecraft — Whenever you cast or copy an instant or sorcery spell, choose target creature you control. Until end of turn, it gains "If this creature would leave the battlefield, exile it instead of putting it anywhere else" and "When this creature is put into exile, create a 4/4 blue and red Elemental creature token." (Each instance of that ability triggers separately.)

When Elite Scaleguard enters, bolster 2. (Choose a creature with the least toughness among creatures you control and put two +1/+1 counters on it.)

Whenever a creature you control with a +1/+1 counter on it attacks, tap target creature defending player controls.

Secret council — When Elrond of the White Council enters, each player secretly votes for fellowship or aid, then those votes are revealed. For each fellowship vote, the voter chooses a creature they control. You gain control of each creature chosen this way, and they gain "This creature can't attack its owner." Then for each aid vote, put a +1/+1 counter on each creature you control.

+1: Choose up to one target creature. Put a +1/+1 counter and a counter from among flying, first strike, lifelink, or vigilance on it.

−3: Look at the top seven cards of your library. You may put a permanent card with mana value 3 or less from among them onto the battlefield with a shield counter on it. Put the rest on the bottom of your library in a random order.

−7: Create five 3/3 white Angel creature tokens with flying.

When Elvish Soultiller dies, choose a creature type. Shuffle all creature cards of that type from your graveyard into your library.

Choose one —

• Untap target permanent.

• Destroy target non-Aura enchantment.

• Target creature loses flying until end of turn.

Flying, haste

As Emissary of Grudges enters, secretly choose an opponent.

Reveal the player you chose: Choose new targets for target spell or ability if it's controlled by the chosen player and if it targets you or a permanent you control. Activate only once.

Target player reveals their hand. You choose a nonbasic land card from it. That player discards that card.

You may choose not to untap Endoskeleton during your untap step.

, : Target creature gets +0/+3 for as long as Endoskeleton remains tapped.