Talons of Wildwood

Enchant creature
Enchanted creature gets +1/+1 and has trample. (It can deal excess combat damage to the player or planeswalker it's attacking.)
{2}{G}: Return this card from your graveyard to your hand.

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.

Blanchwood Armor

Enchant creature
Enchanted creature gets +1/+1 for each Forest you control.

Giant Growth

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

Declare Dominance

Target creature gets +3/+3 until end of turn. All creatures able to block it this turn do so.

Gift of Paradise

Enchant land
When this Aura enters, you gain 3 life.
Enchanted land has "{T}: Add two mana of any one color."

Oaken Boon

Put two +1/+1 counters on target creature. (Then exile this card. You may cast the creature later from exile.)

Tuinvale Treefolk

Tuinvale Treefolk // Oaken Boon

Forest

Colossal Majesty

At the beginning of your upkeep, if you control a creature with power 4 or greater, draw a card.

Timber Protector

Other Treefolk creatures you control get +1/+1.
Other Treefolk and Forests you control have indestructible.

Band Together

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

Haze of Pollen

Prevent all combat damage that would be dealt this turn.
Cycling {3} ({3}, Discard this card: Draw a card.)

Living Terrain

Enchant land
Enchanted land is a 5/6 green Treefolk creature that's still a land.

Root Snare

Prevent all combat damage that would be dealt this turn.

Titanic Growth

Target creature gets +4/+4 until end of turn.

Earth Surge

Each land gets +2/+2 as long as it's a creature.

Oakenform

Enchant creature
Enchanted creature gets +3/+3.

Prey Upon

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

Cloudcrown Oak

Reach (This creature can block creatures with flying.)

Woodcutter's Grit

Target creature you control gets +3/+3 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Orchard Warden

Whenever another Treefolk creature you control enters, you may gain life equal to that creature's toughness.

Ulvenwald Observer

Whenever a creature you control with toughness 4 or greater dies, draw a card.

Pulse of Murasa

Return target creature or land card from a graveyard to its owner's hand. You gain 6 life.

Battlewand Oak

Whenever a Forest you control enters, this creature gets +2/+2 until end of turn.
Whenever you cast a Treefolk spell, this creature gets +2/+2 until end of turn.

Treefolk Harbinger

When this creature enters, you may search your library for a Treefolk or Forest card, reveal it, then shuffle and put that card on top.

Oakgnarl Warrior

Verdeloth the Ancient

Kicker {X} (You may pay an additional {X} as you cast this spell.)
Saproling creatures and other Treefolk creatures get +1/+1.
When Verdeloth enters, if it was kicked, create X 1/1 green Saproling creature tokens.

Wickerbough Elder

This creature enters with a -1/-1 counter on it.
{G}, Remove a -1/-1 counter from this creature: Destroy target artifact or enchantment.

Bosk Banneret

Treefolk spells and Shaman spells you cast cost {1} less to cast.

Rabid Bite

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

Overcome

Creatures you control get +2/+2 and gain trample until end of turn. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.)

Leaf-Crowned Elder

Kinship — At the beginning of your upkeep, you may look at the top card of your library. If it shares a creature type with this creature, you may reveal it. If you do, you may play that card without paying its mana cost.