Serum Raker

Flying
When Serum Raker dies, each player discards a card.

Volatile Stormdrake

Flying, hexproof from activated and triggered abilities
When Volatile Stormdrake enters, exchange control of Volatile Stormdrake and target creature an opponent controls. If you do, you get {E}{E}{E}{E}, then sacrifice that creature unless you pay an amount of {E} equal to its mana value.

Talrand's Invocation

Create two 2/2 blue Drake creature tokens with flying.

Academy Drake

Kicker {4} (You may pay an additional {4} as you cast this spell.)
Flying
If Academy Drake was kicked, it enters with two +1/+1 counters on it.

Angler Drake

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