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.

Trample

When Ambush Krotiq enters the battlefield, return another creature you control to its owner's hand.

{X}{G}, {T}: Arashi, the Sky Asunder deals X damage to target creature with flying.

Channel -- {X}{G}{G}, Discard Arashi: Arashi deals X damage to each creature with flying.

Creatures you control gain reach until end of turn. (They can block creatures with flying.)

Create a 3/3 green Elephant creature token.

Flashback {6}{G}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

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.)

Prevent all combat damage that would be dealt by nongreen creatures this turn.

Dash {1}{G} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)

Whenever Treetop Ambusher attacks, target creature you control gets +1/+1 until end of turn.