Vernal Bloom

Whenever a Forest is tapped for mana, its controller adds an additional {G}.

Krosan Cloudscraper

At the beginning of your upkeep, sacrifice Krosan Cloudscraper unless you pay {G}{G}.
Morph {7}{G}{G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Primeval Force

When Primeval Force enters, sacrifice it unless you sacrifice three Forests.

Giant Growth

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

Exploration

You may play an additional land on each of your turns.

Wild Growth

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

Lone Wolf

You may have Lone Wolf assign its combat damage as though it weren't blocked.

Fyndhorn Elder

Elvish Piper

{G}, {T}: You may put a creature card from your hand onto the battlefield.

Thriss, Nantuko Primus

{G}, {T}: Target creature gets +5/+5 until end of turn.

Revive

Return target green card from your graveyard to your hand.

Forest

Rhox

You may have Rhox assign its combat damage as though it weren't blocked.
{2}{G}: Regenerate Rhox. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Kamahl, Fist of Krosa

{G}: Target land becomes a 1/1 creature until end of turn. It's still a land.
{2}{G}{G}{G}: Creatures you control get +3/+3 and gain trample until end of turn.

Nantuko Disciple

{G}, {T}: Target creature gets +2/+2 until end of turn.

Defense of the Heart

At the beginning of your upkeep, if an opponent controls three or more creatures, sacrifice Defense of the Heart, search your library for up to two creature cards, put those cards onto the battlefield, then shuffle.

Wood Elves

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

Rofellos, Llanowar Emissary

{T}: Add {G} for each Forest you control.

Nourish

Call of the Wild

{2}{G}{G}: Reveal the top card of your library. If it's a creature card, put it onto the battlefield. Otherwise, put it into your graveyard.

Elvish Pioneer

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