Nissa, Who Shakes the World

Whenever you tap a Forest for mana, add an additional {G}.
+1: Put three +1/+1 counters on up to one target noncreature land you control. Untap it. It becomes a 0/0 Elemental creature with vigilance and haste that's still a land.
−8: You get an emblem with "Lands you control have indestructible." Search your library for any number of Forest cards, put them onto the battlefield tapped, then shuffle.

Forest

Roots of Wisdom

Mill three cards, then return a land card or Elf card from your graveyard to your hand. If you can't, draw a card. (To mill a card, put the top card of your library into your graveyard.)

Likeness of the Seeker

Whenever Likeness of the Seeker becomes blocked, untap up to three lands you control.

Azusa's Many Journeys

(As this Saga enters and after your draw step, add a lore counter.)
I — You may play an additional land this turn.
II — You gain 3 life.
III — Exile this Saga, then return it to the battlefield transformed under your control.

Azusa's Many Journeys // Likeness of the Seeker

Renata, Called to the Hunt

Renata's power is equal to your devotion to green. (Each {G} in the mana costs of permanents you control counts toward your devotion to green.)
Each other creature you control enters with an additional +1/+1 counter on it.

Luxurious Libation

Target creature gets +X/+X until end of turn. Create a 1/1 green and white Citizen creature token.

Deathbloom Gardener

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

Golgari Decoy

All creatures able to block Golgari Decoy do so.
Scavenge {3}{G}{G} ({3}{G}{G}, Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.)

Wildwood Escort

When Wildwood Escort enters, return target creature or battle card from your graveyard to your hand.
If Wildwood Escort would die, exile it instead.

Elvish Skysweeper

{4}{G}, Sacrifice a creature: Destroy target creature with flying.

Overwhelm

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.)
Creatures you control get +3/+3 until end of turn.

Moss Diamond

Moss Diamond enters tapped.
{T}: Add {G}.

Masked Vandal

Changeling (This card is every creature type.)
When Masked Vandal enters, you may exile a creature card from your graveyard. If you do, exile target artifact or enchantment an opponent controls.

Sentinel of Lost Lore

When Sentinel of Lost Lore enters, choose one or more —
• Return target card you own in exile that has an Adventure to your hand.
• Put target card you don't own in exile that has an Adventure on the bottom of its owner's library.
• Exile target player's graveyard.

Elven Ambush

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

Elvish Warmaster

Whenever one or more other Elves you control enter, create a 1/1 green Elf Warrior creature token. This ability triggers only once each turn.
{5}{G}{G}: Elves you control get +2/+2 and gain deathtouch until end of turn.

Garruk's Uprising

When this enchantment enters, if you control a creature with power 4 or greater, draw a card.
Creatures you control have trample. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.)
Whenever a creature you control with power 4 or greater enters, draw a card.

Tajuru Blightblade

Redtooth Genealogist

When Redtooth Genealogist enters, create a Royal Role token attached to another target creature you control. (If you control another Role on it, put that one into the graveyard. Enchanted creature gets +1/+1 and has ward {1}.)

Jaspera Sentinel

Reach
{T}, Tap an untapped creature you control: Add one mana of any color.

Overwhelming Encounter

Creatures you control gain vigilance and trample until end of turn. Roll a d20.
1—9 | Creatures you control get +2/+2 until end of turn.
10—19 | Put two +1/+1 counters on each creature you control.
20 | Put four +1/+1 counters on each creature you control.

Fin-Clade Fugitives

Fin-Clade Fugitives can't be blocked by creatures with power 2 or less.
Encore {4}{G} ({4}{G}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Commencement of Festivities

Prevent all combat damage that would be dealt to players this turn.

Halsin, Emerald Archdruid

{1}: Until end of turn, target token you control becomes a green Bear creature with base power and toughness 4/4 in addition to its other colors and types.
Choose a Background (You can have a Background as a second commander.)

Cloakwood Swarmkeeper

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

Attended Socialite

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

Wirewood Pride

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

Taunting Elf

All creatures able to block Taunting Elf do so.

Thorn Lieutenant

Whenever Thorn Lieutenant becomes the target of a spell or ability an opponent controls, create a 1/1 green Elf Warrior creature token.
{5}{G}: Thorn Lieutenant gets +4/+4 until end of turn.

Dwynen's Elite

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

Llanowar Elves

Broken Wings

Destroy target artifact, enchantment, or creature with flying.

Harmonize

Lull

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

Sharpshooter Elf

Reach
Sharpshooter Elf's power is equal to the number of creatures you control.
When Sharpshooter Elf enters, it deals damage equal to its power to target creature with flying an opponent controls.

Betrayal at the Vault

Target creature you control deals damage equal to its power to each of two other target creatures.

Bramblecrush

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

Llanowar Tribe

Elf Warrior

Weatherseed Elf

{T}: Target creature gains forestwalk until end of turn. (It can't be blocked as long as defending player controls a Forest.)

Imaryll, Elfhame Elite

Whenever Imaryll, Elfhame Elite 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.

You Meet in a Tavern

Choose one —
• Form a Party — Look at the top five cards of your library. You may reveal any number of creature cards from among them and put them into your hand. Put the rest on the bottom of your library in a random order.
• Start a Brawl — Creatures you control get +2/+2 until end of turn.

Bounty of Skemfar

Reveal the top six cards of your library. You may put up to one land card from among them onto the battlefield tapped and up to one Elf card from among them into your hand. Put the rest on the bottom of your library in a random order.

Copy

(This token can be used to represent a token that's a copy of a permanent.)

Elvish Visionary

When Elvish Visionary enters, draw a card.

Rabid Bite

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

Freyalise, Llanowar's Fury

+2: Create a 1/1 green Elf Druid creature token with "{T}: Add {G}."
−2: Destroy target artifact or enchantment.
−6: Draw a card for each green creature you control.
Freyalise, Llanowar's Fury can be your commander.

Elvish Mystic

Wood Elves

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

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.)

Band Together

Up to two target creatures you control each deal damage equal to their power to another target creature.

Joraga Visionary

When Joraga Visionary enters, draw a card.

Utopia Sprawl

Enchant Forest
As Utopia Sprawl enters, choose a color.
Whenever enchanted Forest is tapped for mana, its controller adds an additional one mana of the chosen color.

Invigorate

If you control a Forest, rather than pay this spell's mana cost, you may have an opponent gain 3 life.
Target creature gets +4/+4 until end of turn.

Young Hero

Enchant creature
Enchanted creature has "Whenever this creature attacks, if its toughness is 3 or less, put a +1/+1 counter on it."

Royal

Enchant creature
Enchanted creature gets +1/+1 and has ward {1}. (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {1}.)

Royal // Young Hero

Immaculate Magistrate

{T}: Put a +1/+1 counter on target creature for each Elf you control.

Beast Whisperer

Whenever you cast a creature spell, draw a card.

Most Wanted

Flash
Enchant creature
Enchanted creature gets +2/+1.
When enchanted creature dies, create two Treasure tokens.

Sorcerer

Enchant creature
Enchanted creature gets +1/+1 and has "Whenever this creature attacks, scry 1."

Monster

Enchant creature
Enchanted creature gets +1/+1 and has trample.

Monster // Sorcerer

Vastwood Thicket

Vastwood Thicket enters tapped.
{T}: Add {G}.

Vastwood Fortification

Vastwood Fortification // Vastwood Thicket

Tajuru Pathwarden

Vigilance (Attacking doesn't cause this creature to tap.)
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Citizen

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.)

Tajuru Snarecaster

Greater Good

Sacrifice a creature: Draw cards equal to the sacrificed creature's power, then discard three cards.

Elvish Archdruid

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

Vivien, Champion of the Wilds

You may cast creature spells as though they had flash.
+1: Until your next turn, up to one target creature gains vigilance and reach.
−2: Look at the top three cards of your library. Exile one face down and put the rest on the bottom of your library in any order. For as long as it remains exiled, you may cast it if it's a creature spell.

Noxious Assault

Creatures you control get +2/+2 until end of turn. Whenever a creature blocks this turn, its controller gets a poison counter.

Elvish Rejuvenator

When Elvish Rejuvenator enters, look at the top five cards of your library. You may put a land card from among them onto the battlefield tapped. Put the rest on the bottom of your library in a random order.

Sylvan Messenger

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
When Sylvan Messenger enters, reveal the top four cards of your library. Put all Elf cards revealed this way into your hand and the rest on the bottom of your library in any order.

Treasure

{T}, Sacrifice this artifact: Add one mana of any color.

Llanowar Stalker

Whenever another creature you control enters, Llanowar Stalker gets +1/+0 until end of turn.

Elf Druid

Storm the Seedcore

Distribute four +1/+1 counters among up to four target creatures you control. Creatures you control gain vigilance and trample until end of turn.