Zanam Djinn

Flying
Zanam Djinn gets -2/-2 as long as blue is the most common color among all permanents or is tied for most common.

Dream Thrush

Flying
: Target land becomes the basic land type of your choice until end of turn.

Crypt Angel

Flying, protection from white
When Crypt Angel enters, return target blue or red creature card from your graveyard to your hand.

Phyrexian Battleflies

Flying
: Phyrexian Battleflies gets +1/+0 until end of turn. Activate no more than twice each turn.

Razorfoot Griffin

Flying (This creature can’t be blocked except by creatures with flying or reach.)
First strike (This creature deals combat damage before creatures without first strike.)

Devouring Strossus

Flying, trample
At the beginning of your upkeep, sacrifice a creature.
Sacrifice a creature: Regenerate Devouring Strossus.

Kangee, Aerie Keeper

Kicker (You may pay an additional as you cast this spell.)
Flying
When Kangee, Aerie Keeper enters, if it was kicked, put X feather counters on it.
Other Bird creatures get +1/+1 for each feather counter on Kangee, Aerie Keeper.

Darigaaz, the Igniter

Flying
Whenever Darigaaz, the Igniter deals combat damage to a player, you may pay . If you do, choose a color, then that player reveals their hand and Darigaaz deals damage to the player equal to the number of cards of that color revealed this way.

Tolarian Emissary

Kicker (You may pay an additional as you cast this spell.)
Flying
When Tolarian Emissary enters, if it was kicked, destroy target enchantment.

Crosis, the Purger

Flying
Whenever Crosis, the Purger deals combat damage to a player, you may pay . If you do, choose a color, then that player reveals their hand and discards all cards of that color.

Tower Drake

Flying
: Tower Drake gets +0/+1 until end of turn.

Reya Dawnbringer

Flying
At the beginning of your upkeep, you may return target creature card from your graveyard to the battlefield.

Phyrexian Slayer

Flying
Whenever Phyrexian Slayer becomes blocked by a white creature, destroy that creature. It can’t be regenerated.

Rainbow Crow

Flying
: Rainbow Crow becomes the color of your choice until end of turn.

Blazing Specter

Flying, haste
Whenever Blazing Specter deals combat damage to a player, that player discards a card.

Metathran Aerostat

Flying
: You may put a creature card with mana value X from your hand onto the battlefield. If you do, return Metathran Aerostat to its owner’s hand.

Rith, the Awakener

Flying
Whenever Rith, the Awakener deals combat damage to a player, you may pay . If you do, choose a color, then create a 1/1 green Saproling creature token for each permanent of that color.

Glimmering Angel

Flying
: Glimmering Angel gains shroud until end of turn. (It can’t be the target of spells or abilities.)

Urborg Drake

Flying
Urborg Drake attacks each combat if able.

Treva, the Renewer

Flying
Whenever Treva, the Renewer deals combat damage to a player, you may pay . If you do, choose a color, then you gain 1 life for each permanent of that color.

Metathran Transport

Flying
Metathran Transport can’t be blocked by blue creatures.
: Target creature becomes blue until end of turn.