Craterhoof Behemoth

Haste When Craterhoof Behemoth enters the battlefield, creatures you control gain trample and get +X/+X until end of turn, where X is the number of creatures you control.

Glimpse of Nature

Whenever you play a creature spell this turn, draw a card.

Nettle Sentinel

Nettle Sentinel doesn't untap during your untap step. Whenever you play a green spell, you may untap Nettle Sentinel.

Dryad Arbor

(Dryad Arbor isn't a spell, it's affected by summoning sickness, and it has "{T}: Add {G} to your mana pool.") Dryad Arbor is green.

Green Sun's Zenith

Search your library for a green creature card with converted mana cost X or less, put it onto the battlefield, then shuffle your library. Shuffle Green Sun's Zenith into its owner's library.

Heritage Druid

Tap three untapped Elves you control: Add {G}{G}{G} to your mana pool.

Birchlore Rangers

Tap two untapped Elves you control: Add one mana of any color to your mana pool. Morph {G} (You may play this face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Abrupt Decay

Abrupt Decay can't be countered by spells or abilities. Destroy target nonland permanent with converted mana cost 3 or less.

Deathrite Shaman

{T}: Exile target land card from a graveyard. Add one mana of any color to your mana pool. {B}, {T}: Exile target instant or sorcery card from a graveyard. Each opponent loses 2 life. {G}, {T}: Exile target creature card from a graveyard. You gain 2 life.

Wirewood Symbiote

Return an Elf you control to its owner's hand: Untap target creature. Play this ability only once each turn.

Bayou

Counts as both swamp and forest and is affected by spells that affect either. Tap to add either {B} or {G} to your mana pool.

Llanowar Elves

Tap to add green mana to your mana pool. This tap can be played as an interrupt.

Gaea's Cradle

{T}: Add {G} to your mana pool for each creature you control.

Quirion Ranger

Return a forest you control to owner's hand: Untap target creature. Use this ability only once each turn.

Natural Order

Sacrifice a green creature: Search your library for a green creature card and put it into play as though it were just played. Snuffle your library afterwards.

Verdant Catacombs

Windswept Heath

Wooded Foothills

Elvish Visionary

Forest

({T}: Add {G}.)