Flying At the beginning of your upkeep, you may put a feather counter on target creature. If you do, that creature has base power and toughness 3/1 and has flying for as long as it has a feather counter on it.

Flying Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

If an opponent controls more lands than you, search your library for up to three Plains cards, reveal them, put them into your hand, then shuffle.

Whenever an opponent draws a card, that player may pay {2}. If the player doesn't, you create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Flying White spells and black spells you cast cost {1} less to cast.

Equipped creature gets +2/+2 and has protection from black and from green. Whenever equipped creature deals combat damage to a player, that player discards a card and you untap all lands you control. Equip {2}

Vigilance Other creatures you control get +2/+2. Creatures your opponents control get -2/-2.

Flying Other creatures you control with flying get +1/+1.

Creatures you control with flying get +1/+1.

Creatures with flying get +2/+0. Creatures without flying get -2/-0.

Changeling (This card is every creature type.) {X}: Until end of turn, creatures you control have base power and toughness X/X and gain all creature types.

As this enchantment enters, choose a creature type. Creatures of the chosen type get +1/+1.

Bird creatures get +1/+1. {1}{W}: Target Bird creature gains banding until end of turn. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding a player controls are blocking or being blocked by a creature, that player divides that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

As this creature enters, choose a creature type. This creature is the chosen type in addition to its other types. Other creatures you control of the chosen type get +1/+1.

As this creature enters, choose a creature type. This creature is the chosen type in addition to its other types. Each other creature you control of the chosen type enters with an additional +1/+1 counter on it.

Flying, first strike Whenever you cast a historic spell, this creature gets +1/+1 until end of turn. (Artifacts, legendaries, and Sagas are historic.)

Flying Whenever you cast a noncreature spell, this creature gets +1/+0 until end of turn.

Flying When this creature dies, exile it, then return up to two target Bird and/or Cleric permanent cards from your graveyard to the battlefield.

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.) Return X target creature cards with mana value 2 or less from your graveyard to the battlefield.

Draw a card for each Bird on the battlefield.

Flying Whenever you cast a historic spell, scry 1. (Artifacts, legendaries, and Sagas are historic. To scry 1, look at the top card of your library, then you may put that card on the bottom.)

Flying When this creature enters, scry 3. (Look at the top three cards of your library, then put any number of them on the bottom and the rest on top in any order.)

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.

Whenever a creature you control deals combat damage to an opponent, you may draw a card.

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

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

Whenever another creature you control with power 2 or less enters, you may pay {1}. If you do, draw a card.

Flying When this creature enters, draw a card, then discard a card.

Flying When this creature dies, draw a card.

As this artifact enters, choose a creature type. Creatures you control of the chosen type get +1/+1. Whenever you cast a creature spell of the chosen type, draw a card.

Flying When this creature enters, destroy target enchantment. {W}: Target permanent becomes white until end of turn.

Destroy all creatures with power greater than target creature's power.

Destroy target artifact or enchantment with mana value 4 or less.

Each player chooses a creature type. Destroy all creatures that aren't of a type chosen this way. They can't be regenerated.

Flying Sacrifice this creature: Counter target instant or sorcery spell unless its controller pays {1}.

Flying {T}, Tap two untapped Birds you control: Return target permanent to its owner's hand.

Flying {1}{W}, Sacrifice Lieutenant Kirtar: Exile target attacking creature.

Flying {3}{W}{W}, Sacrifice Major Teroh: Exile all black creatures.

Destroy all creatures with power 4 or greater. They can't be regenerated.

Flying

Changeling (This card is every creature type.) Tap an untapped creature you control: This creature gains flying until end of turn.

Flying

Flying When this creature enters, look at the top four cards of your library, then put them back in any order.

Flying When this creature enters, look at the top four cards of your library, then put them back in any order.

Flying

Changeling (This card is every creature type.) {T}: Target creature gains all creature types until end of turn. {T}: Target creature loses all creature types until end of turn.

Flying Whenever a creature you control becomes blocked, you may untap that creature and remove it from combat.

Create two 1/1 white Bird creature tokens with flying. Flashback—Tap three untapped white creatures you control. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Cumulative upkeep {W} or {U} (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 this creature dies, create a 1/1 white Bird creature token with flying for each age counter on it.

Create four 1/1 white Bird creature tokens with flying. Basic landcycling {2} ({2}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)