Plains

Pacifism

Enchant creature
Enchanted creature can't attack or block.

Winged Words

This spell costs {1} less to cast if you control a creature with flying.
Draw two cards.

Cloudkin Seer

Flying
When this creature enters, draw a card.

Squadron Hawk

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

Azorius Guildgate

This land enters tapped.
{T}: Add {W} or {U}.

Favorable Winds

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

Island

Empyrean Eagle

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

Faerie Miscreant

Flying
When this creature enters, if you control another creature named Faerie Miscreant, draw a card.

Warden of Evos Isle

Flying
Creature spells with flying you cast cost {1} less to cast.

Tranquil Cove

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {W} or {U}.

Loyal Pegasus

Flying
This creature can't attack or block alone.

Thunderclap Wyvern

Flash (You may cast this spell any time you could cast an instant.)
Flying
Other creatures you control with flying get +1/+1.