Flourishing Defenses

Whenever a -1/-1 counter is put on a creature, you may create a 1/1 green Elf Warrior creature token.

Imperious Perfect

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

Forest

Trystan, Penitent Culler

Deathtouch
Whenever this creature transforms into Trystan, Penitent Culler, mill three cards, then you may exile an Elf card from your graveyard. If you do, each opponent loses 2 life.
At the beginning of your first main phase, you may pay {G}. If you do, transform Trystan.

Trystan, Callous Cultivator

Deathtouch
Whenever this creature enters or transforms into Trystan, Callous Cultivator, mill three cards. Then if there is an Elf card in your graveyard, you gain 2 life.
At the beginning of your first main phase, you may pay {B}. If you do, transform Trystan.

Trystan, Callous Cultivator // Trystan, Penitent Culler

Swamp

Auntie's Sentence

Choose one —
• Target opponent reveals their hand. You choose a nonland permanent card from it. That player discards that card.
• Target creature gets -2/-2 until end of turn.

Llanowar Elves

Dawn-Blessed Pennant

As this artifact enters, choose Elemental, Elf, Faerie, Giant, Goblin, Kithkin, Merfolk, or Treefolk.
Whenever a permanent you control of the chosen type enters, you gain 1 life.
{2}, {T}, Sacrifice this artifact: Return target card of the chosen type from your graveyard to your hand.

Shimmerwilds Growth

Enchant land
As this Aura enters, choose a color.
Enchanted land is the chosen color.
Whenever enchanted land is tapped for mana, its controller adds an additional one mana of the chosen color.

Dose of Dawnglow

Return target creature card from your graveyard to the battlefield. Then if it isn't your main phase, blight 2. (Put two -1/-1 counters on a creature you control.)

Scarblade's Malice

Target creature you control gains deathtouch and lifelink until end of turn. When that creature dies this turn, create a 2/2 black and green Elf creature token.

Lys Alana Dignitary

As an additional cost to cast this spell, behold an Elf or pay {2}. (To behold an Elf, choose an Elf you control or reveal an Elf card from your hand.)
{T}: Add {G}{G}. Activate only if there is an Elf card in your graveyard.

Virulent Emissary

Deathtouch
Whenever another creature you control enters, you gain 1 life.

Bloodline Bidding

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Choose a creature type. Return all creature cards of the chosen type from your graveyard to the battlefield.

Lys Alana Huntmaster

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

High Perfect Morcant

Whenever High Perfect Morcant or another Elf you control enters, each opponent blights 1. (They each put a -1/-1 counter on a creature they control.)
Tap three untapped Elves you control: Proliferate. Activate only as a sorcery. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Elvish Archdruid

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

Morcant's Loyalist

Other Elves you control get +1/+1.
When this creature dies, return another target Elf card from your graveyard to your hand.

Moon-Vigil Adherents

Trample
This creature gets +1/+1 for each creature you control and each creature card in your graveyard.

Lathril, Blade of the Elves

Menace (This creature can't be blocked except by two or more creatures.)
Whenever Lathril deals combat damage to a player, create that many 1/1 green Elf Warrior creature tokens.
{T}, Tap ten untapped Elves you control: Each opponent loses 10 life and you gain 10 life.

Blight Rot

Put four -1/-1 counters on target creature.

Blossoming Defense

Target creature you control gets +2/+2 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Jungle Hollow

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {B} or {G}.