Overgrowth

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional {G}{G}.

Garruk's Packleader

Whenever another creature you control with power 3 or greater enters, you may draw a card.

Terra Stomper

This spell can't be countered.
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Briarpack Alpha

Flash (You may cast this spell any time you could cast an instant.)
When Briarpack Alpha enters, target creature gets +2/+2 until end of turn.

Arbor Elf

Prey Upon

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

Thragtusk

When Thragtusk enters, you gain 5 life.
When Thragtusk leaves the battlefield, create a 3/3 green Beast creature token.

Soul of the Harvest

Trample
Whenever another nontoken creature you control enters, you may draw a card.

Kalonian Behemoth

Shroud (This creature can't be the target of spells or abilities.)

Giant Growth

Target creature gets +3/+3 until end of turn.

Garruk's Horde

Trample
Play with the top card of your library revealed.
You may cast creature spells from the top of your library. (Do this only any time you could cast that creature spell. You still pay the spell's costs.)