Llanowar Elves

Stampede Driver

{1}{G}, {T}, Discard a card: Creatures you control get +1/+1 and gain trample until end of turn.

Nantuko Elder

Krosan Drover

Creature spells you cast with mana value 6 or greater cost {2} less to cast.

Tunneler Wurm

Discard a card: Regenerate Tunneler Wurm.

Roar of the Wurm

Create a 6/6 green Wurm creature token.
Flashback {3}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Forest

Wurm's Tooth

Whenever a player casts a green spell, you may gain 1 life.

Brawn

Trample
As long as Brawn is in your graveyard and you control a Forest, creatures you control have trample.

Vitalizing Wind

Creatures you control get +7/+7 until end of turn.

Eternal Witness

When Eternal Witness enters, you may return target card from your graveyard to your hand.

Plated Slagwurm

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

Wild Growth

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

Craw Wurm

Roaring Slagwurm

Whenever Roaring Slagwurm attacks, tap all artifacts.

Yavimaya Hollow

{T}: Add {C}.
{G}, {T}: Regenerate target creature.

Werebear

{T}: Add {G}.
Threshold — Werebear gets +3/+3 as long as seven or more cards are in your graveyard.

Seedborn Muse

Untap all permanents you control during each other player's untap step.

Aspect of Wolf

Enchant creature
Enchanted creature gets +X/+Y, where X is half the number of Forests you control, rounded down, and Y is half the number of Forests you control, rounded up.

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.)

Skyshroud Claim

Search your library for up to two Forest cards, put them onto the battlefield, then shuffle.

Elvish Pioneer

When Elvish Pioneer enters, you may put a basic land card from your hand onto the battlefield tapped.

Crush of Wurms

Create three 6/6 green Wurm creature tokens.
Flashback {9}{G}{G}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Wood Elves

When Wood Elves enters, search your library for a Forest card, put that card onto the battlefield, then shuffle.

Spore Frog

Sacrifice Spore Frog: Prevent all combat damage that would be dealt this turn.

Wurmcalling

Buyback {2}{G} (You may pay an additional {2}{G} as you cast this spell. If you do, put this card into your hand as it resolves.)
Create an X/X green Wurm creature token.