Obstinate Baloth

When Obstinate Baloth enters the battlefield, you gain 4 life. If a spell or ability an opponent controls causes you to discard Obstinate Baloth, put it onto the battlefield instead of putting it into your graveyard.

Gaea's Revenge

Gaea's Revenge can't be countered. Haste Gaea's Revenge can't be the target of nongreen spells or abilities from nongreen sources.

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.

Slagstorm

Choose one — Slagstorm deals 3 damage to each creature; or Slagstorm deals 3 damage to each player.

Primeval Titan

Trample Whenever Primeval Titan enters the battlefield or attacks, you may search your library for up to two land cards, put them onto the battlefield tapped, then shuffle your library.

Overgrown Battlement

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

Tumble Magnet

Tumble Magnet enters the battlefield with three charge counters on it. {T}, Remove a charge counter from Tumble Magnet: Tap target artifact or creature.

Arc Trail

Arc Trail deals 2 damage to target creature or player and 1 damage to another target creature or player.

Pyroclasm

Pyroclasm deals 2 damage to each creature.

Avenger of Zendikar

When Avenger of Zendikar enters the battlefield, put a 0/1 green Plant creature token onto the battlefield for each land you control. Landfall — Whenever a land enters the battlefield under your control, you may put a +1/+1 counter on each Plant creature you control.

Explore

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

Nature's Claim

Destroy target artifact or enchantment. Its controller gains 4 life.

Raging Ravine

Raging Ravine enters the battlefield tapped. {T}: Add {R} or {G} to your mana pool. {2}{R}{G}: Until end of turn, Raging Ravine becomes a 3/3 red and green Elemental creature with "Whenever this creature attacks, put a +1/+1 counter on it." It's still a land.

Harrow

As an additional cost to cast Harrow, sacrifice a land. Search your library for up to two basic land cards and put them onto the battlefield. Then shuffle your library.

Khalni Heart Expedition

Landfall — Whenever a land enters the battlefield under your control, you may put a quest counter on Khalni Heart Expedition. Remove three quest counters from Khalni Heart Expedition and sacrifice it: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle your library.

Lotus Cobra

Landfall — Whenever a land enters the battlefield under your control, you may add one mana of any color to your mana pool.

Summoning Trap

If a creature spell you cast this turn was countered by a spell or ability an opponent controlled, you may pay {0} rather than pay Summoning Trap's mana cost. Look at the top seven cards of your library. You may put a creature card from among them onto the battlefield. Put the rest on the bottom of your library in any order.

Valakut, the Molten Pinnacle

Valakut, the Molten Pinnacle enters the battlefield tapped. Whenever a Mountain enters the battlefield under your control, if you control at least five other Mountains, you may have Valakut, the Molten Pinnacle deal 3 damage to target creature or player. {T}: Add {R} to your mana pool.

Misty Rainforest

Arid Mesa

Acidic Slime

Inferno Titan

Terastodon

Terramorphic Expanse

Forest

({T}: Add {G}.)