Messenger Drake

Flying
When Messenger Drake dies, draw a card.

Living Airship

Flying
{2}{G}: Regenerate Living Airship.

Devkarin Dissident

{4}{G}: Devkarin Dissident gets +2/+2 until end of turn.

Tolarian Scholar

Forest

Waterwhirl

Return up to two target creatures to their owners' hands.

Giant Spider

Reach (This creature can block creatures with flying.)

Sinuous Striker

{U}: Sinuous Striker gets +1/-1 until end of turn.
Eternalize—{3}{U}{U}, Discard a card. ({3}{U}{U}, Discard a card, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Snake Warrior with no mana cost. Eternalize only as a sorcery.)

Wall of Mist

Crocodile of the Crossing

Haste
When Crocodile of the Crossing enters, put a -1/-1 counter on target creature you control.

Bristling Boar

Bristling Boar can't be blocked by more than one creature.

Kavu Primarch

Kicker {4} (You may pay an additional {4} as you cast this spell.)
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
If Kavu Primarch was kicked, it enters with four +1/+1 counters on it.

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.

Divination

Arcane Flight

Enchant creature
Enchanted creature gets +1/+1 and has flying.

Ursine Champion

{5}{G}: Ursine Champion gets +3/+3 and becomes a Bear Berserker until end of turn. Activate only once each turn.

Plummet

Frilled Sea Serpent

{5}{U}{U}: Frilled Sea Serpent can't be blocked this turn.

{U}: Sinuous Striker gets +1/-1 until end of turn.

Island

Mindscour Dragon

Flying
Whenever Mindscour Dragon deals combat damage to an opponent, target player mills four cards.

Capture Sphere

Flash (You may cast this spell any time you could cast an instant.)
Enchant creature
When Capture Sphere enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.

Silent Departure

Return target creature to its owner's hand.
Flashback {4}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)