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.

Nettle Sentinel

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

Elvish Archdruid

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

Scavenging Ooze

{G}: Exile target card from a graveyard. If it was a creature card, put a +1/+1 counter on Scavenging Ooze and you gain 1 life.

Reclamation Sage

When Reclamation Sage enters the battlefield, you may destroy target artifact or enchantment.

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.

Phyrexian Revoker

As Phyrexian Revoker enters the battlefield, name a nonland card. Activated abilities of sources with the chosen name can't be activated.

Heritage Druid

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

Essence Warden

Whenever another creature comes into play, you gain 1 life.

Elvish Mystic

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

Chord of Calling

Convoke (Each creature you tap while playing this spell reduces its cost by {1} or by one mana of that creature's color.) Search your library for a creature card with converted mana cost X or less and put it into play. Then shuffle your library.

Kataki, War's Wage

All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay {1}."

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.

Relic of Progenitus

{T}: Target player removes a card in his or her graveyard from the game. {1}, Remove Relic of Progenitus from the game: Remove all graveyards from the game. Draw a card.

Elvish Champion

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

Thoughtseize

Target player reveals his or her hand. You choose a nonland card from it. That player discards that card. You lose 2 life.

Pendelhaven

{T}: Add {G} to your mana pool. {T}: Target 1/1 creature gets +1/+2 until end of turn.

Llanowar Elves

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

Path to Exile

Exile target creature. Its controller may search his or her library for a basic land card, put that card onto the battlefield tapped, then shuffle his or her library.

Overgrown Tomb

Temple Garden

Verdant Catacombs

Windswept Heath

Elvish Visionary

Selfless Spirit

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}.)