Battlegrowth

Timberwatch Elf

{T}: Target creature gets +X/+X until end of turn, where X is the number of Elves on the battlefield.

Tajuru Blightblade

Bull's Strength

Target creature gets +2/+2 and gains trample until end of turn. Untap it.

Forest

Wildheart Invoker

{8}: Target creature gets +5/+5 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Fanatical Strength

Target creature gets +3/+3 and gains trample until end of turn.

Growth Cycle

Target creature gets +3/+3 until end of turn. It gets an additional +2/+2 until end of turn for each card named Growth Cycle in your graveyard.

Big Play

Target creature gets +2/+2 and gains reach until end of turn. Put a +1/+1 counter on it. (A creature with reach can block creatures with flying.)

Aerial Predation

Destroy target creature with flying. You gain 2 life.

Arboreal Grazer

Reach
When this creature enters, you may put a land card from your hand onto the battlefield tapped.

Guard Change

Create a Monster Role token attached to target creature you control. (Enchanted creature gets +1/+1 and has trample.)

Ferocious Werefox

Ferocious Werefox // Guard Change

Arbor Elf

Imaryll, Elfhame Elite

Whenever Imaryll attacks, it gets +X/+X until end of turn, where X is the number of other Elves you control.
You may have Imaryll assign its combat damage as though it weren't blocked.

Stonewood Invoker

{7}{G}: This creature gets +5/+5 until end of turn.

Chorus of Might

Until end of turn, target creature gets +1/+1 for each creature you control and gains trample.

Sandstorm

Sandstorm deals 1 damage to each attacking creature.

Elvish Branchbender

{T}: Until end of turn, target Forest becomes an X/X Treefolk creature in addition to its other types, where X is the number of Elves you control.

Grizzled Outrider

Aim High

Untap target creature. It gets +2/+2 and gains reach until end of turn.

Llanowar Elite

Kicker {8} (You may pay an additional {8} as you cast this spell.)
Trample
If this creature was kicked, it enters with five +1/+1 counters on it.

Dwynen's Elite

When this creature enters, if you control another Elf, create a 1/1 green Elf Warrior creature token.

Llanowar Scout

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

Bestow Greatness

Target creature gets +4/+4 and gains trample until end of turn.

Gladecover Scout

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Atraxa's Fall

Destroy target artifact, battle, enchantment, or creature with flying.

Llanowar Druid

{T}, Sacrifice this creature: Untap all Forests.

Llanowar Elves

Weather the Storm

You gain 3 life.
Storm (When you cast this spell, copy it for each spell cast before it this turn.)

Elderleaf Mentor

When this creature enters, create a 1/1 green Elf Warrior creature token.

Llanowar Visionary

When this creature enters, draw a card.
{T}: Add {G}.

Giant Growth

Target creature gets +3/+3 until end of turn.

Thornweald Archer

Reach (This creature can block creatures with flying.)
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Elvish Visionary

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.)

Elvish Fury

Buyback {4} (You may pay an additional {4} as you cast this spell. If you do, put this card into your hand as it resolves.)
Target creature gets +2/+2 until end of turn.

Woodland Mystic

Aspect of Hydra

Target creature gets +X/+X until end of turn, where X is your devotion to green. (Each {G} in the mana costs of permanents you control counts toward your devotion to green.)

Groundswell

Target creature gets +2/+2 until end of turn.
Landfall — If you had a land enter the battlefield under your control this turn, that creature gets +4/+4 until end of turn instead.

Confidence from Strength

Target creature gets +4/+4 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Druid of the Cowl

Elvish Eulogist

Sacrifice this creature: You gain 1 life for each Elf card in your graveyard.

Bite Down

Target creature you control deals damage equal to its power to target creature or planeswalker you don't control.

Yeva's Forcemage

When this creature enters, target creature gets +2/+2 until end of turn.

Elvish Mystic

Clear Shot

Target creature you control gets +1/+1 until end of turn. It deals damage equal to its power to target creature you don't control.

Gift of Strength

Target creature gets +3/+3 and gains reach until end of turn.

Wirewood Elf

Arachnoid Adaptation

Target creature gets +2/+2 and gains reach until end of turn. Untap it.

Elvish Aberration

{T}: Add {G}{G}{G}.
Forestcycling {2} ({2}, Discard this card: Search your library for a Forest card, reveal it, put it into your hand, then shuffle.)

Abundant Growth

Enchant land
When this Aura enters, draw a card.
Enchanted land has "{T}: Add one mana of any color."

Leaf Gilder

Chatterstorm

Create a 1/1 green Squirrel creature token.
Storm (When you cast this spell, copy it for each spell cast before it this turn.)

Rampant Growth

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Awaken the Bear

Seeker of Skybreak

Quirion Elves

As this creature enters, choose a color.
{T}: Add {G}.
{T}: Add one mana of the chosen color.