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.

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.

Thalia, Guardian of Thraben

First strike Noncreature spells cost {1} more to cast.

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.

Burrenton Forge-Tender

Protection from red Sacrifice Burrenton Forge-Tender: Prevent all damage a red source of your choice would deal this turn.

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.

Yixlid Jailer

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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.

Fracturing Gust

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

Ethersworn Canonist

Each player who has played a nonartifact spell this turn can't play additional nonartifact spells.

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.

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.

Overgrown Tomb

Temple Garden

Verdant Catacombs

Elvish Visionary

Eternal Witness

Horizon Canopy

Selfless Spirit

Thalia, Heretic Cathar

Blooming Marsh

Aven Mindcensor

Forest

({T}: Add {G}.)