Manaweft Sliver

Creature - Sliver

Sliver creatures you control have ": Add one mana of any color to your mana pool."

"I see in their interconnectedness a strange embodiment of the natural order."-Dionus, elvish archdruid

Megantic Sliver

Creature - Sliver

Sliver creatures you control get +3/+3.

Even the thrums, the lowliest of slivers, become deadly in its presence.

Predatory Sliver

Creature - Sliver

Sliver creatures you control get +1/+1.

No matter how much the slivers change, their collective might remains.

Rootwalla

Creature - Lizard

: Rootwalla gets +2/+2 until end of turn. Activate this ability only once each turn.

If you try to sneak up on a rootwalla, you'll suddenly find yourself dealing with twice the lizard.

Rumbling Baloth

Creature - Beast

In the dim light beneath the vast trees of Deepglade, baloths prowl in search of prey. Their guttural calls are more felt than heard, but their attack scream carries for miles.

Scavenging Ooze

Creature - Ooze

: Exile target card from a graveyard. If it was a creature card, put a +1/+1 counter on Scavenging Ooze and you gain 1 life.

In nature, not a single bone or scrap of flesh goes to waste.

Sporemound

Creature - Fungus

Whenever a land enters the battlefield under your control, put a 1/1 green Saproling creature token onto the battlefield.

"If you threaten its territory, it produces spores. Actually, no matter what you do, it produces spores."-Hadi Kasten, Calla Dale naturalist

Vastwood Hydra

Creature - Hydra

Vastwood Hydra enters the battlefield with X +1/+1 counters on it.

When Vastwood Hydra dies, you may distribute a number of +1/+1 counters equal to the number of +1/+1 counters on Vastwood Hydra among any number of creatures you control.

Voracious Wurm

Creature - Wurm

Voracious Wurm enters the battlefield with X +1/+1 counters on it, where X is the amount of life you've gained this turn.

Shepherds in Kalonia know it's better to let sheep roam than have them be trapped when the wurms are feeding.

Witchstalker

Creature - Wolf

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Whenever an opponent casts a blue or black spell during your turn, put a +1/+1 counter on Witchstalker.

Woodborn Behemoth

Creature - Elemental

As long as you control eight or more lands, Woodborn Behemoth gets +4/+4 and has trample. (If this creature would assign enough damage to its blockers to destroy them, you may have it assign the rest of its damage to defending player or planeswalker.)