Plains

War Screecher

Flying
{5}{W}, {T}: Other creatures you control get +1/+1 until end of turn.

Squadron Hawk

Flying
When Squadron Hawk enters, you may search your library for up to three cards named Squadron Hawk, reveal them, put them into your hand, then shuffle.

Territorial Roc

Eyes in the Skies

Create a 1/1 white Bird creature token with flying, then populate. (Create a token that's a copy of a creature token you control.)

Healer's Hawk

Flying
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Supply-Line Cranes

Flying
When Supply-Line Cranes enters, put a +1/+1 counter on target creature.

Colorful Feiyi Sparrow

Flying (This creature can't be blocked except by creatures with flying or reach.)

Aerial Assault

Destroy target tapped creature. You gain 1 life for each creature you control with flying.

Qilin's Blessing

Target creature gets +2/+2 until end of turn.

Inspired Charge

Creatures you control get +2/+1 until end of turn.

Battlefield Raptor

Tazeem Raptor

Flying
When Tazeem Raptor enters, you may return a land you control to its owner's hand.

Rustwing Falcon

Syndicate Messenger

Flying
Afterlife 1 (When this creature dies, create a 1/1 white and black Spirit creature token with flying.)