Cavern of Souls

As Cavern of Souls enters the battlefield, choose a creature type. {T}: Add {1} to your mana pool. {T}: Add one mana of any color to your mana pool. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

Collected Company

Look at the top six cards of your library. Put up to two creature cards with converted mana cost 3 or less from among them onto the battlefield. Put the rest on the bottom of your library in any order.

Gilt-Leaf Palace

As Gilt-Leaf Palace comes into play, you may reveal an Elf card from your hand. If you don't, Gilt-Leaf Palace comes into play tapped. {T}: Add {B} or {G} to your mana pool.

Elvish Archdruid

Other Elf creatures you control get +1/+1. {T}: Add {G} to your mana pool for each Elf you control.

Stain the Mind

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Name a nonland card. Search target player's graveyard, hand, and library for any number of cards with that name and exile them. Then that player shuffles his or her library.

Dwynen's Elite

When Dwynen's Elite enters the battlefield, if you control another Elf, put a 1/1 green Elf Warrior creature token onto the battlefield.

Shaman of the Pack

When Shaman of the Pack enters the battlefield, target opponent loses life equal to the number of Elves you control.

Creeping Corrosion

Destroy all artifacts.

Heritage Druid

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

Dismember

({B/P} can be paid with either {B} or 2 life.) Target creature gets -5/-5 until end of turn.

Elvish Mystic

{T}: Add {G} to your mana pool.

Abrupt Decay

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

Ezuri, Renegade Leader

{G}: Regenerate another target Elf. {2}{G}{G}{G}: Elf creatures you control get +3/+3 and gain trample until end of turn.

Fracturing Gust

Destroy all artifacts and enchantments. You gain 2 life for each permanent destroyed this way.

Elvish Champion

Other Elf creatures get +1/+1 and have forestwalk. (They're unblockable as long as defending player controls a Forest.)

Elves of Deep Shadow

{T}: Add {B} to your mana pool, and Elves of Deep Shadow do 1 damage to you. This ability is played as an interrupt.

Llanowar Elves

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

Misty Rainforest

Overgrown Tomb

Chameleon Colossus

Elvish Visionary

Horizon Canopy

Leyline of the Void

If Leyline of the Void is in your opening hand, you may begin the game with it on the battlefield. If a card would be put into an opponent's graveyard from anywhere, exile it instead.

Lead the Stampede

Look at the top five cards of your library. You may reveal any number of creature cards from among them and put the revealed cards into your hand. Put the rest on the bottom of your library in any order.

Forest

({T}: Add {G}.)