Hall of Gemstone

At the beginning of each player's upkeep, that player chooses a color. Until end of turn, lands tapped for mana produce mana of the chosen color instead of any other color.

Overrun

Creatures you control get +3/+3 and gain trample until end of turn. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.)

Well of Knowledge

{2}: Draw a card. Any player may activate this ability but only during their draw step.

Skyshroud Elite

Skyshroud Elite gets +1/+2 as long as an opponent controls a nonbasic land.

Prevent all combat damage that would be dealt this turn.

Claws of Wirewood

Claws of Wirewood deals 3 damage to each creature with flying and each player.
Cycling {2} ({2}, Discard this card: Draw a card.)

Elvish Spirit Guide

Exile Elvish Spirit Guide from your hand: Add {G}.

Rowen

Reveal the first card you draw each turn. Whenever you reveal a basic land card this way, draw a card.

Priest of Titania

{T}: Add {G} for each Elf on the battlefield.

Lull

Prevent all combat damage that would be dealt this turn.
Cycling {2} ({2}, Discard this card: Draw a card.)

Naturalize

Kamahl, Fist of Krosa

{G}: Target land becomes a 1/1 creature until end of turn. It's still a land.
{2}{G}{G}{G}: Creatures you control get +3/+3 and gain trample until end of turn.

Reclaim

Put target card from your graveyard on top of your library.

Jayemdae Tome

Recycle

Skip your draw step.
Whenever you play a card, draw a card.
Your maximum hand size is two.

Familiar Ground

Each creature you control can't be blocked by more than one creature.

Crumble

Destroy target artifact. It can't be regenerated. That artifact's controller gains life equal to its mana value.

Stampede

Attacking creatures get +1/+0 and gain trample until end of turn.

Dense Foliage

Creatures can't be the targets of spells.

Tribal Forcemage

Morph {1}{G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
When Tribal Forcemage is turned face up, creatures of the creature type of your choice get +2/+2 and gain trample until end of turn.

Elvish Champion

Other Elf creatures get +1/+1 and have forestwalk. (They can't be blocked as long as defending player controls a Forest.)

Hush

Destroy all enchantments.
Cycling {2} ({2}, Discard this card: Draw a card.)

Gaea's Herald

Gempalm Strider

Cycling {2}{G}{G} ({2}{G}{G}, Discard this card: Draw a card.)
When you cycle Gempalm Strider, Elf creatures get +2/+2 until end of turn.

Regrowth

Return target card from your graveyard to your hand.

Voice of the Woods

Tap five untapped Elves you control: Create a 7/7 green Elemental creature token with trample. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Urza's Incubator

As Urza's Incubator enters, choose a creature type.
Creature spells of the chosen type cost {2} less to cast.

Forest

Elvish Vanguard

Whenever another Elf enters, put a +1/+1 counter on Elvish Vanguard.

Wood Elves

When Wood Elves enters, search your library for a Forest card, put that card onto the battlefield, then shuffle.

Norwood Riders

Norwood Riders can't be blocked by more than one creature.

Howling Mine

At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.

Abundance

If you would draw a card, you may instead choose land or nonland and reveal cards from the top of your library until you reveal a card of the chosen kind. Put that card into your hand and put all other cards revealed this way on the bottom of your library in any order.

Fyndhorn Elves

Natural Selection

Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle.

Mirri's Guile

At the beginning of your upkeep, you may look at the top three cards of your library, then put them back in any order.

Wirewood Hivemaster

Whenever another nontoken Elf enters, you may create a 1/1 green Insect creature token.

Nature's Resurgence

Each player draws a card for each creature card in their graveyard.

Elvish Pioneer

When Elvish Pioneer enters, you may put a basic land card from your hand onto the battlefield tapped.

Chain of Acid

Destroy target noncreature permanent. Then that permanent's controller may copy this spell and may choose a new target for that copy.

Defiant Elf

Skyshroud Claim

Search your library for up to two Forest cards, put them onto the battlefield, then shuffle.

Mystic Compass

{1}, {T}: Target land becomes the basic land type of your choice until end of turn.

Darkwatch Elves

Protection from black
Cycling {2} ({2}, Discard this card: Draw a card.)

Elvish Bard

All creatures able to block Elvish Bard do so.

Elvish Scrapper

{G}, {T}, Sacrifice Elvish Scrapper: Destroy target artifact.

Llanowar Elves

Coat of Arms

Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it. (For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.)

Wellwisher

{T}: You gain 1 life for each Elf on the battlefield.

Creeping Mold

Destroy target artifact, enchantment, or land.

Ambush Commander

Forests you control are 1/1 green Elf creatures that are still lands.
{1}{G}, Sacrifice an Elf: Target creature gets +3/+3 until end of turn.

Elvish Lookout

Shroud (This creature can't be the target of spells or abilities.)

Taunting Elf

All creatures able to block Taunting Elf do so.

Bloodline Shaman

{T}: Choose a creature type. Reveal the top card of your library. If that card is a creature card of the chosen type, put it into your hand. Otherwise, put it into your graveyard.

Eladamri, Lord of Leaves

Other Elf creatures have forestwalk. (They can't be blocked as long as defending player controls a Forest.)
Other Elves have shroud. (They can't be the targets of spells or abilities.)

Horn of Greed

Whenever a player plays a land, that player draws a card.

Hurricane

Hurricane deals X damage to each creature with flying and each player.

Kaysa

Emerald Medallion

Green spells you cast cost {1} less to cast.

Elvish Hunter

{1}{G}, {T}: Target creature doesn't untap during its controller's next untap step.

Collective Unconscious

Draw a card for each creature you control.

Gaea's Liege

As long as Gaea's Liege isn't attacking, its power and toughness are each equal to the number of Forests you control. As long as Gaea's Liege is attacking, its power and toughness are each equal to the number of Forests defending player controls.
{T}: Target land becomes a Forest until Gaea's Liege leaves the battlefield.

Break Asunder

Destroy target artifact or enchantment.
Cycling {2} ({2}, Discard this card: Draw a card.)

Titania's Chosen

Whenever a player casts a green spell, put a +1/+1 counter on Titania's Chosen.

Scroll Rack

{1}, {T}: Exile any number of cards from your hand face down. Put that many cards from the top of your library into your hand. Then look at the exiled cards and put them on top of your library in any order.