Getting

Wellwisher

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

Glistener Elf

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Glissa Sunseeker

First strike
{T}: Destroy target artifact if its mana value is equal to the amount of unspent mana you have.

Proxy

Jagged-Scar Archers

Jagged-Scar Archers's power and toughness are each equal to the number of Elves you control.
{T}: Jagged-Scar Archers deals damage equal to its power to target creature with flying.

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.

Gilt-Leaf Ambush

Create two 1/1 green Elf Warrior creature tokens. Clash with an opponent. If you win, those creatures gain deathtouch until end of turn. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value. Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it.)

Lys Alana Huntmaster

Whenever you cast an Elf spell, you may create a 1/1 green Elf Warrior creature token.

Lys Alana Bowmaster

Reach
Whenever you cast an Elf spell, you may have Lys Alana Bowmaster deal 2 damage to target creature with flying.

Tangle

Prevent all combat damage that would be dealt this turn.
Each attacking creature doesn't untap during its controller's next untap step.

Heedless One

Trample
Heedless One's power and toughness are each equal to the number of Elves on the battlefield.

Wrap in Vigor

Nature's Claim

Destroy target artifact or enchantment. Its controller gains 4 life.

Essence Warden

Whenever another creature enters, you gain 1 life.

Willow Elf

Gaea's Cradle

{T}: Add {G} for each creature you control.

Farhaven Elf

When Farhaven Elf enters, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Elvish Spirit Guide

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

Elvish Vanguard

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

Llanowar Elves

Don't Have

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.

Kaysa

Drove of Elves

Hexproof
Drove of Elves's power and toughness are each equal to the number of green permanents you control.

Beast Within

Destroy target permanent. Its controller creates a 3/3 green Beast creature token.

Wren's Run Vanquisher

As an additional cost to cast this spell, reveal an Elf card from your hand or pay {3}.
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Elvish Archdruid

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

Elvish Champion

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

Elvish Harbinger

When Elvish Harbinger enters, you may search your library for an Elf card, reveal it, then shuffle and put that card on top.
{T}: Add one mana of any color.

Heritage Druid

Tap three untapped Elves you control: Add {G}{G}{G}.

Devoted Druid

{T}: Add {G}.
Put a -1/-1 counter on Devoted Druid: Untap Devoted Druid.

Have

Priest of Titania

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

Krosan Grip

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
Destroy target artifact or enchantment.

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.)

Gaea's Anthem

Joraga Warcaller

Multikicker {1}{G} (You may pay an additional {1}{G} any number of times as you cast this spell.)
Joraga Warcaller enters with a +1/+1 counter on it for each time it was kicked.
Other Elf creatures you control get +1/+1 for each +1/+1 counter on Joraga Warcaller.

Bramblewood Paragon

Each other Warrior creature you control enters with an additional +1/+1 counter on it.
Each creature you control with a +1/+1 counter on it has trample.

Elvish Lyrist

{G}, {T}, Sacrifice Elvish Lyrist: Destroy target enchantment.

Gaea's Herald

Imperious Perfect

Other Elves you control get +1/+1.
{G}, {T}: Create a 1/1 green Elf Warrior creature token.

Noxious Revival

({G/P} can be paid with either {G} or 2 life.)
Put target card from a graveyard on top of its owner's library.

Fyndhorn Elves

Elvish Promenade

Create a 1/1 green Elf Warrior creature token for each Elf you control.

Fyndhorn Elder

Oracle of Mul Daya

You may play an additional land on each of your turns.
Play with the top card of your library revealed.
You may play lands from the top of your library.

Collective Unconscious

Draw a card for each creature you control.

Wirewood Savage

Whenever a Beast enters, you may draw a card.

Harmonize

Beast

Wood Elves

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

Wirewood Elf

Gilt-Leaf Archdruid

Whenever you cast a Druid spell, you may draw a card.
Tap seven untapped Druids you control: Gain control of all lands target player controls.

Moment's Peace

Prevent all combat damage that would be dealt this turn.
Flashback {2}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Forest

Titania's Chosen

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

Sol Ring

Boreal Druid

Elvish Pioneer

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

Skyshroud Elite

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

Treetop Scout

Treetop Scout can't be blocked except by creatures with flying.

Prevent all combat damage that would be dealt this turn.

Viridian Joiner

{T}: Add an amount of {G} equal to Viridian Joiner's power.

Skyshroud Ranger

{T}: You may put a land card from your hand onto the battlefield. Activate only as a sorcery.

Heart Warden

{T}: Add {G}.
{2}, Sacrifice Heart Warden: Draw a card.

Elf Warrior

Sylvan Library

At the beginning of your draw step, you may draw two additional cards. If you do, choose two cards in your hand drawn this turn. For each of those cards, pay 4 life or put the card on top of your library.

Talara's Battalion

Cast this spell only if you've cast another green spell this turn.
Trample

Elvish Scrapper

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

Wirewood Lodge

{T}: Add {C}.
{G}, {T}: Untap target Elf.

Copperhorn Scout

Whenever Copperhorn Scout attacks, untap each other creature you control.

Naturalize

Elvish Lookout

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

Arbor Elf

Yavimaya Granger

Echo {2}{G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When Yavimaya Granger enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.