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.)

Forest

Fyndhorn Elves

Overrun

Creatures you control get +3/+3 and gain trample until end of turn.

Stampede

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

Prevent all combat damage that would be dealt this turn.

Regrowth

Return target card from your graveyard to your hand.

Llanowar Elves

Kaysa

Wood Elves

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

Priest of Titania

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

Norwood Riders

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

Titania's Chosen

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

Elvish Champion

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

Taunting Elf

All creatures able to block Taunting Elf do so.

Elvish Lookout

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

Elvish Vanguard

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

Elvish Scrapper

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

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.

Elvish Pioneer

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

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.

Wellwisher

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

Voice of the Woods

Tap five untapped Elves you control: Create a 7/7 green Elemental creature token with trample.

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.

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.

Wirewood Hivemaster

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

Break Asunder

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

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.

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.)

Collective Unconscious

Draw a card for each creature you control.

Creeping Mold

Destroy target artifact, enchantment, or land.

Crumble

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

Defiant Elf

Dense Foliage

Creatures can't be the targets of spells.

Familiar Ground

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

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.

Hurricane

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

Mystic Compass

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

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.

Hush

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

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.

Lull

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

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.

Howling Mine

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

Nature's Resurgence

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

Naturalize

Elvish Spirit Guide

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

Reclaim

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

Rowen

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

Horn of Greed

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

Jayemdae Tome

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.

Well of Knowledge

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

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.

Skyshroud Claim

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

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.)

Darkwatch Elves

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

Elvish Hunter

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

Elvish Bard

All creatures able to block Elvish Bard do so.

Gaea's Herald

Urza's Incubator

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

Skyshroud Elite

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

Recycle

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

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.