Spidery Grasp

Untap target creature. It gets +2/+4 and gains reach until end of turn. (It can block creatures with flying.)

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.)

Giant Spider

Reach (This creature can block creatures with flying.)

Druid of the Cowl

Oakenform

Enchant creature
Enchanted creature gets +3/+3.

Cowl Prowler

Arborback Stomper

Trample
When this creature enters, you gain 5 life.

Rootwalla

{1}{G}: This creature gets +2/+2 until end of turn. Activate only once each turn.

Forest

Rabid Bite

Target creature you control deals damage equal to its power to target creature you don't control.

Stampeding Rhino

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)