Have

Arctic Wolves

Cumulative upkeep {2} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
When this creature enters, draw a card.

Zephyr Falcon

Aurochs

Trample
Whenever this creature attacks, it gets +1/+0 until end of turn for each other attacking Aurochs.

Thieving Magpie

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever this creature deals damage to an opponent, draw a card.

Coral Eel

Man-o'-War

When this creature enters, return target creature to its owner's hand.

Bear Cub

Electric Eel

When this creature enters, it deals 1 damage to you.
{R}{R}: This creature gets +2/+0 until end of turn and deals 1 damage to you.

Anaconda

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Arctic Foxes

This creature can't be blocked by creatures with power 2 or greater as long as defending player controls a snow land.

Zoologist

{3}{G}, {T}: Reveal the top card of your library. If it's a creature card, put it onto the battlefield. Otherwise, put it into your graveyard.

Timber Wolves

Banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Wild Elephant

Lynx

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Royal Falcon

Emerald Oryx

Bull Hippo

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Wild Ox

Carrier Pigeons

Flying
When this creature enters, draw a card at the beginning of the next turn's upkeep.

Mother Bear

{3}{G}{G}, Exile this card from your graveyard: Create two 2/2 green Bear creature tokens. Activate only as a sorcery.

Hammerhead Shark

This creature can't attack unless defending player controls an Island.

Stinging Lionfish

Whenever you cast your first spell during each opponent's turn, you may tap or untap target nonland permanent.

Mesa Falcon

Flying
{1}{W}: This creature gets +0/+1 until end of turn.

Don't Have

Alpine Watchdog

Vigilance (Attacking doesn't cause this creature to tap.)

Boa Constrictor

{T}: This creature gets +3/+3 until end of turn.

Wake of Vultures

Flying
{1}{B}, Sacrifice a creature: Regenerate this creature.

Tarpan

When this creature dies, you gain 1 life.

Wild Dogs

At the beginning of your upkeep, if a player has more life than each other player, the player with the most life gains control of this creature.
Cycling {2} ({2}, Discard this card: Draw a card.)

Lurking Crocodile

Bloodthirst 1 (If an opponent was dealt damage this turn, this creature enters with a +1/+1 counter on it.)
Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Giant Oyster

You may choose not to untap this creature during your untap step.
{T}: For as long as this creature remains tapped, target tapped creature doesn't untap during its controller's untap step, and at the beginning of each of your draw steps, put a -1/-1 counter on that creature. When this creature leaves the battlefield or becomes untapped, remove all -1/-1 counters from the creature.

Joven's Ferrets

Whenever this creature attacks, it gets +0/+2 until end of turn.
At end of combat, tap all creatures that blocked this creature this turn. They don't untap during their controller's next untap step.

Deepwood Wolverine

Whenever this creature becomes blocked, it gets +2/+0 until end of turn.

Golden Bear

Pale Bears

Karoo Meerkat

Gibbering Hyenas

This creature can't block black creatures.

Bull Elephant

When this creature enters, sacrifice it unless you return two Forests you control to their owner's hand.

Gang of Elk

Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it.

Mountain Goat

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)

Kingfisher

Flying
When this creature dies, draw a card.

Giant Albatross

Flying
When this creature dies, you may pay {1}{U}. If you do, for each creature that dealt damage to this creature this turn, destroy that creature unless its controller pays 2 life. A creature destroyed this way can't be regenerated.

Warthog

Riptide Biologist

Protection from Beasts
Morph {2}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Trained Jackal

Silverback Ape

Raging Cougar

River Bear

Stalking Tiger

This creature can't be blocked by more than one creature.

Canyon Jerboa

Landfall — Whenever a land you control enters, creatures you control get +1/+1 until end of turn.

Killer Whale

{U}: This creature gains flying until end of turn.

Fledgling Osprey

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

Wolverine Pack

Rampage 2 (Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.)

Grizzly Bears

Whippoorwill

{G}{G}, {T}: Target creature can't be regenerated this turn. Damage that would be dealt to that creature this turn can't be prevented or dealt instead to another permanent or player. When the creature dies this turn, exile the creature.

Jungle Lion

Rabid Wolverines

Whenever this creature becomes blocked by a creature, this creature gets +1/+1 until end of turn.

Graceful Antelope

Plainswalk (This creature can't be blocked as long as defending player controls a Plains.)
Whenever this creature deals combat damage to a player, you may have target land become a Plains until this creature leaves the battlefield.

Ancient Silverback

{G}: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Giant Shark

This creature can't attack unless defending player controls an Island.
Whenever this creature blocks or becomes blocked by a creature that has been dealt damage this turn, this creature gets +2/+0 and gains trample until end of turn.
When you control no Islands, sacrifice this creature.

School of Piranha

At the beginning of your upkeep, sacrifice this creature unless you pay {1}{U}.

Python

Grizzled Wolverine

{R}: This creature gets +2/+0 until end of turn. Activate only during the declare blockers step, only if at least one creature is blocking this creature, and only once each turn.