As Adaptive Automaton enters the battlefield, choose a creature type.

Adaptive Automaton is the chosen type in addition to its other types.

Other creatures you control of the chosen type get +1/+1.

Forests you control are 1/1 green Elf creatures that are still lands.

{1}{G}, Sacrifice an Elf: Target creature gets +3/+3 until end of turn.

{T}: Untap target Forest.

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

Tap two untapped Elves you control: Add one mana of any color.

Morph {G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

{T}: Add {C}.

As Brass Herald enters the battlefield, choose a creature type.

When Brass Herald enters the battlefield, reveal the top four cards of your library. Put all creature cards of the chosen type revealed this way into your hand and the rest on the bottom of your library in any order.

Creatures of the chosen type get +1/+1.

Changeling (This card is every creature type.)

Protection from black

{2}{G}{G}: Chameleon Colossus gets +X/+X until end of turn, where X is its power.

Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it. (For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.)

Draw a card for each creature you control.

Destroy target permanent.

{T}: Add {C}.

{1}, {T}: Untap target land.

{T}: Add {G}.

Put a -1/-1 counter on Devoted Druid: Untap Devoted Druid.

As Door of Destinies enters the battlefield, choose a creature type.

Whenever you cast a spell of the chosen type, put a charge counter on Door of Destinies.

Creatures you control of the chosen type get +1/+1 for each charge counter on Door of Destinies.

Hexproof

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

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

Other Elves have shroud. (They can't be the targets of spells or abilities.)

Other Elf creatures you control get +1/+1.

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

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

Enchant land

Whenever enchanted land is tapped for mana, its controller adds an additional {G} for each Elf on the battlefield.

When Elvish Harbinger enters the battlefield, 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.

{G}: Target creature gains trample until end of turn.

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

{T}: Add {G}.

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

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

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

When Elvish Visionary enters the battlefield, draw a card.

Whenever another creature enters the battlefield, you gain 1 life.

{G}: Regenerate another target Elf.

{2}{G}{G}{G}: Elf creatures you control get +3/+3 and gain trample until end of turn.

{G}, {T}, Discard a creature card: Search your library for a creature card, reveal it, put it into your hand, then shuffle.

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

+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.

{T}: Add {G}.

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

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.)

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.)

Search your library for a green creature card with mana value X or less, put it onto the battlefield, then shuffle. Shuffle Green Sun's Zenith into its owner's library.

Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

{T}: Add {G} for each +1/+1 counter on Gyre Sage.

Trample

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

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

Create three 1/1 green Elf Warrior creature tokens.

Reinforce 3--{3}{G} ({3}{G}, Discard this card: Put three +1/+1 counters on target creature.)

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

Other Elves you control get +1/+1.

{G}, {T}: Create a 1/1 green Elf Warrior creature token.

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.

Level up {1}{G} ({1}{G}: Put a level counter on this. Level up only as a sorcery.)

LEVEL 1-4

1/2

{T}: Add {G}{G}.

LEVEL 5+

1/4

Elves you control have "{T}: Add {G}{G}."

Multikicker {1}{G} (You may pay an additional {1}{G} any number of times as you cast this spell.)

Joraga Warcaller enters the battlefield 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.

{T}: Add {G}.

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

When Masked Admirers enters the battlefield, draw a card.

Whenever you cast a creature spell, you may pay {G}{G}. If you do, return Masked Admirers from your graveyard to your hand.

+1: Search your library for a card named Nissa's Chosen, put it onto the battlefield, then shuffle.

+1: You gain 2 life for each Elf you control.

-7: Search your library for any number of Elf creature cards, put them onto the battlefield, then shuffle.

If Nissa's Chosen would die, put it on the bottom of its owner's library instead.

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.

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

As Quirion Elves enters the battlefield, choose a color.

{T}: Add {G}.

{T}: Add one mana of the chosen color.

Return a Forest you control to its owner's hand: Untap target creature. Activate only once each turn.

Draw a card for each creature you control.

Ferocious -- You gain 4 life for each creature you control with power 4 or greater.

As Steely Resolve enters the battlefield, choose a creature type.

Creatures of the chosen type have shroud. (They can't be the targets of spells or abilities.)

{G}, Discard a creature card: Search your library for a creature card, reveal that card, put it into your hand, then shuffle.

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.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

When Sylvan Messenger enters the battlefield, 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.

All creatures able to block Taunting Elf do so.

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

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

{1}{G}, Sacrifice Viridian Zealot: Destroy target artifact or enchantment.

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

{T}: Add X mana of any one color, where X is the number of Elves on the battlefield.

When Wirewood Herald dies, you may search your library for an Elf card, reveal that card, put it into your hand, then shuffle.

{T}: Add {C}.

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

Return an Elf you control to its owner's hand: Untap target creature. Activate only once each turn.

Search your library for a creature card, reveal it, then shuffle and put the card on top.

{T}: Add {C}.

{G}, {T}: Regenerate target creature.