Naturalize

Colossal Dreadmaw

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

Overrun

Creatures you control get +3/+3 and gain trample until end of turn. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.)

Prevent all combat damage that would be dealt this turn.

Tread Upon

Target creature gets +2/+2 and gains trample until end of turn.

Greenwood Sentinel

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

Declare Dominance

Target creature gets +3/+3 until end of turn. All creatures able to block it this turn do so.

Blanchwood Armor

Enchant creature
Enchanted creature gets +1/+1 for each Forest you control.

Elvish Mystic

Baloth Woodcrasher

Landfall — Whenever a land you control enters, Baloth Woodcrasher gets +4/+4 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Explore

You may play an additional land this turn.
Draw a card.

Wall of Blossoms

Defender
When Wall of Blossoms enters, draw a card.

Forest

Phytoburst

Target creature gets +5/+5 until end of turn.

Garruk's Companion

Deadly Recluse

Reach (This creature can block creatures with flying.)
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)