Cloudkin Seer

Flying
When Cloudkin Seer enters, draw a card.

Wishcoin Crab

Divination

Snapping Drake

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

Unsummon

Return target creature to its owner's hand.

Island

Angler Drake

Flying
When Angler Drake enters, you may return target creature to its owner's hand.

Uncomfortable Chill

Creatures your opponents control get -2/-0 until end of turn.
Draw a card.

Kitesail Corsair

This creature has flying as long as it's attacking.

Air Elemental

Elite Instructor

When Elite Instructor enters, draw a card, then discard a card.

Omenspeaker

When Omenspeaker enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)