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

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

Enchant creature

Enchanted creature gets +X/+Y, where X is half the number of Forests you control, rounded down, and Y is half the number of Forests you control, rounded up.

Whenever a Forest enters the battlefield under your control, Battlewand Oak gets +2/+2 until end of turn.

Whenever you cast a Treefolk spell, Battlewand Oak gets +2/+2 until end of turn.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Destroy target nonland permanent an opponent controls.

II — Search your library for a Forest card, put it onto the battlefield tapped, then shuffle.

III — Creatures you control gain deathtouch until end of turn.

(As this Saga enters and after your draw step, add a lore counter.)

I — Search your library for up to two basic Forest cards, reveal them, put them into your hand, then shuffle.

II — Put up to one target land card from your graveyard on top of your library.

III — Exile this Saga, then return it to the battlefield transformed under your control.

When Bull Elephant enters the battlefield, sacrifice it unless you return two Forests you control to their owner's hand.

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

If one or more tokens would be created under your control, those tokens plus that many 1/1 green Squirrel creature tokens are created instead.

, Sacrifice X Squirrels: Target creature gets +X/-X until end of turn.

Target creature with flying loses flying until end of turn. Crash Landing deals damage to that creature equal to the number of Forests you control.

Vanishing 3 (This creature enters the battlefield with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)

When Deep Forest Hermit enters the battlefield, create four 1/1 green Squirrel creature tokens.

Squirrels you control get +1/+1.

Until end of turn, creatures you control gain protection from white if you control a Plains, from blue if you control an Island, from black if you control a Swamp, from red if you control a Mountain, and from green if you control a Forest.

: Until end of turn, target Forest becomes an X/X Treefolk creature in addition to its other types, where X is the number of Elves you control.

Flourishing Bloom-Kin gets +1/+1 for each Forest you control.

Disguise

When Flourishing Bloom-Kin is turned face up, search your library for up to two Forest cards and reveal them. Put one of them onto the battlefield tapped and the other into your hand, then shuffle.

(: Add .)

Gingerbread Cabin enters the battlefield tapped unless you control three or more other Forests.

When Gingerbread Cabin enters the battlefield untapped, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

When Hag Hedge-Mage enters the battlefield, if you control two or more Swamps, you may have target player discard a card.

When Hag Hedge-Mage enters the battlefield, if you control two or more Forests, you may put target card from your graveyard on top of your library.

Hinterland Harbor enters the battlefield tapped unless you control a Forest or an Island.

: Add or .

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.

Jungle Basin enters the battlefield tapped.

When Jungle Basin enters the battlefield, sacrifice it unless you return an untapped Forest you control to its owner's hand.

: Add .

Kird Ape gets +1/+2 as long as you control a Forest.

Target opponent loses 2 life for each Swamp you control. Last Stand deals damage to target creature equal to the number of Mountains you control. Create a 1/1 green Saproling creature token for each Forest you control. You gain 2 life for each Plains you control. Draw a card for each Island you control, then discard that many cards.

Loam Lion gets +1/+2 as long as you control a Forest.

At the beginning of combat on your turn, target Elf you control gains trample and gets +X/+X until end of turn, where X is the number of Forests you control.

When Nessian Game Warden enters the battlefield, look at the top X cards of your library, where X is the number of Forests you control. 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 any order.

When Nissa, Vastwood Seer enters the battlefield, you may search your library for a basic Forest card, reveal it, put it into your hand, then shuffle.

Whenever a land enters the battlefield under your control, if you control seven or more lands, exile Nissa, then return her to the battlefield transformed under her owner's control.

+1: Target land you control becomes a 4/4 Elemental creature with trample. It's still a land.

+1: Untap up to four target Forests.

−7: Search your library for any number of basic land cards, put them onto the battlefield, then shuffle. Those lands become 4/4 Elemental creatures with trample. They're still lands.

Trample

When Old-Growth Troll dies, if it was a creature, return it to the battlefield. It's an Aura enchantment with enchant Forest you control and "Enchanted Forest has ‘: Add ' and ‘, , Sacrifice this land: Create a tapped 4/4 green Troll Warrior creature token with trample.'"

Reach (This creature can block creatures with flying.)

Whenever you cast a Spirit or Arcane spell, Orbweaver Kumo gains forestwalk until end of turn. (It can't be blocked as long as defending player controls a Forest.)

Target creature gets +1/+1 until end of turn for each Forest you control.

Reach

If a creature is attacking you and you control a Forest and a Plains, you may cast Qasali Ambusher without paying its mana cost and as though it had flash.

Create a 2/5 green Treefolk Shaman creature token.

Whenever a Forest enters the battlefield under your control, you may return Reach of Branches from your graveyard to your hand.

If you control a Forest, rather than pay this spell's mana cost, you may have each other player gain 6 life.

Destroy all enchantments.

: Add for each Forest you control.

If an opponent controls an Island and you control a Forest, you may cast this spell without paying its mana cost.

Flash

Flying, protection from blue

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

If you control a Forest, rather than pay this spell's mana cost, you may have each other player gain 5 life.

Whenever you cast a green spell or a Forest enters the battlefield under your control, you gain 1 life.

If an opponent controls a Forest and you control an Island, you may cast this spell without paying its mana cost.

Put target creature on top of its owner's library.

Reach

When Sylvan Primordial enters the battlefield, for each opponent, destroy target noncreature permanent that player controls. For each permanent destroyed this way, search your library for a Forest card and put that card onto the battlefield tapped. Then shuffle.

Whenever you cast a red spell, Tattermunge Duo gets +1/+1 until end of turn.

Whenever you cast a green spell, Tattermunge Duo gains forestwalk until end of turn. (It can't be blocked as long as defending player controls a Forest.)

, , Sacrifice a creature: Forests you control become 2/3 creatures until end of turn. They're still lands.

Whenever Timbermaw Larva attacks, it gets +1/+1 until end of turn for each Forest you control.

At the beginning of your upkeep, sacrifice Tourach's Chant unless you pay .

Whenever a player puts a Forest onto the battlefield, Tourach's Chant deals 3 damage to that player unless they put a -1/-1 counter on a creature they control.

Uktabi Wildcats's power and toughness are each equal to the number of Forests you control.

, Sacrifice a Forest: Regenerate Uktabi Wildcats.

Trample, reach

When Vorinclex enters the battlefield, search your library for up to two Forest cards, reveal them, put them into your hand, then shuffle.

: Exile Vorinclex, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery.

Return target card from your graveyard to your hand. Clash with an opponent. If you win, untap all Forests you control. (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.)

Exile Woodland Guidance.

: Wormwood Treefolk gains forestwalk until end of turn and deals 2 damage to you. (It can't be blocked as long as defending player controls a Forest.)

: Wormwood Treefolk gains swampwalk until end of turn and deals 2 damage to you. (It can't be blocked as long as defending player controls a Swamp.)

Whenever another nontoken creature you control dies, you may return it to the battlefield face down under its owner's control. It's a Forest land. (It has no other types or abilities.)