Belbe, Corrupted Observer

At the beginning of each postcombat main phase, the active player adds {C}{C} for each of your opponents who lost life this turn. (Damage causes loss of life.)

Deepwood Denizen

Vigilance (Attacking doesn't cause this creature to tap.)
{5}{G}, {T}: Draw a card. This ability costs {1} less to activate for each +1/+1 counter on creatures you control.

Elf Replica

{1}{G}, Sacrifice this creature: Destroy target enchantment.

Harmonize

Nadier, Agent of the Duskenel

Whenever a token you control leaves the battlefield, put a +1/+1 counter on Nadier.
When Nadier leaves the battlefield, create a number of 1/1 green Elf Warrior creature tokens equal to its power.
Partner (You can have two commanders if both have partner.)

Argothian Elder

Cloakwood Swarmkeeper

Gathered Swarm — Whenever one or more tokens you control enter, put a +1/+1 counter on this creature.

Abomination of Llanowar

Vigilance; menace (This creature can't be blocked except by two or more creatures.)
Abomination of Llanowar's power and toughness are each equal to the number of Elves you control plus the number of Elf cards in your graveyard.

Ivy Lane Denizen

Whenever another green creature you control enters, put a +1/+1 counter on target creature.

Elvish Visionary

Drider

Reach
Whenever this creature deals combat damage to a player, create a 2/1 black Spider creature token with menace and reach.

Brightwood Tracker

{5}{G}, {T}: Look at the top four cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Elderfang Ritualist

When this creature dies, return another target Elf card from your graveyard to your hand.

Beastcaller Savant

Haste
{T}: Add one mana of any color. Spend this mana only to cast a creature spell.

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Elegant Edgecrafters

This creature can't be blocked by creatures with power 2 or less.
Fabricate 2 (When this creature enters, put two +1/+1 counters on it or create two 1/1 colorless Servo artifact creature tokens.)

Golgari Guildgate

This land enters tapped.
{T}: Add {B} or {G}.

Deathbloom Ritualist

{T}: Add X mana of any one color, where X is the number of creature cards in your graveyard.

Druid of the Cowl

Drove of Elves

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

Elvish Archdruid

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

Arbor Elf

Duskwielder

Boast — {1}: Target opponent loses 1 life and you gain 1 life. (Activate only if this creature attacked this turn and only once each turn.)

Dwynen, Gilt-Leaf Daen

Reach (This creature can block creatures with flying.)
Other Elf creatures you control get +1/+1.
Whenever Dwynen attacks, you gain 1 life for each attacking Elf you control.

Defiant Elf

Golgari Rot Farm

This land enters tapped.
When this land enters, return a land you control to its owner's hand.
{T}: Add {B}{G}.

Cultivator of Blades

Fabricate 2 (When this creature enters, put two +1/+1 counters on it or create two 1/1 colorless Servo artifact creature tokens.)
Whenever this creature attacks, you may have other attacking creatures get +X/+X until end of turn, where X is this creature's power.

Dwynen's Elite

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

Eyeblight Massacre

Non-Elf creatures get -2/-2 until end of turn.

Lys Alana Bowmaster

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

Copperhorn Scout

Whenever this creature attacks, untap each other creature you control.

District Guide

When this creature enters, you may search your library for a basic land card or Gate card, reveal it, put it into your hand, then shuffle.

Fyndhorn Elves

Attended Socialite

Alliance — Whenever another creature you control enters, this creature gets +1/+1 until end of turn.

Deathbloom Gardener

Deathtouch
{T}: Add one mana of any color.

Numa, Joraga Chieftain

At the beginning of combat on your turn, you may pay {X}{X}. When you do, distribute X +1/+1 counters among any number of target Elves.
Partner (You can have two commanders if both have partner.)

Llanowar Elves

Golgari Signet

Deathknell Berserker

When this creature dies, if its power was 3 or greater, create a 2/2 black Zombie Berserker creature token.

Blood Pact

Target player draws two cards and loses 2 life.

Sol Ring

Armorcraft Judge

When this creature enters, draw a card for each creature you control with a +1/+1 counter on it.