River Boa

Islandwalk (This creature can’t be blocked as long as defending player controls an Island.)
: Regenerate River Boa.

Viashino Runner

Menace (This creature can’t be blocked except by two or more creatures.)

Reflexes

Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.)
Enchanted creature has first strike. (It deals combat damage before creatures without first strike.)

Lava Hounds

Haste
When Lava Hounds enters the battlefield, it deals 4 damage to you.

River Boa

Islandwalk (This creature can’t be blocked as long as defending player controls an Island.)
: Regenerate River Boa.

River Boa

Islandwalk (This creature can’t be blocked as long as defending player controls an Island.)
: Regenerate River Boa.

River Boa

Islandwalk (This creature can’t be blocked as long as defending player controls an Island.)
: Regenerate River Boa.

River Boa

Islandwalk (This creature can’t be blocked as long as defending player controls an Island.)
: Regenerate River Boa.

Warthog

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

Reflexes

Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.)
Enchanted creature has first strike. (It deals combat damage before creatures without first strike.)

Viashino Runner

Menace (This creature can’t be blocked except by two or more creatures.)

River Boa

Islandwalk (This creature can’t be blocked as long as defending player controls an Island.)
: Regenerate River Boa.

Rogue Elephant

When Rogue Elephant enters the battlefield, sacrifice it unless you sacrifice a Forest.

Lava Hounds

Haste
When Lava Hounds enters the battlefield, it deals 4 damage to you.

Rogue Elephant

When Rogue Elephant enters the battlefield, sacrifice it unless you sacrifice a Forest.

Arctic Wolves

Cumulative upkeep (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 Arctic Wolves enters the battlefield, draw a card.

Aurochs

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

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.)

Warthog

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

Bull Elephant

When Bull Elephant enters the battlefield, sacrifice it unless you return two Forests you control to their owner’s hand.

Pygmy Hippo

Whenever Pygmy Hippo attacks and isn’t blocked, you may have defending player activate a mana ability of each land they control and lose all unspent mana. If you do, Pygmy Hippo assigns no combat damage this turn and at the beginning of your next main phase this turn, you add an amount of equal to the amount of mana that player lost this way.

River Boa

Islandwalk (This creature can’t be blocked as long as defending player controls an Island.)
: Regenerate River Boa.