Chorus of the Conclave

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)
As an additional cost to cast creature spells, you may pay any amount of mana. If you do, that creature enters with that many additional +1/+1 counters on it.

Elite Cat Warrior

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

Vine Dryad

You may exile a green card from your hand rather than pay this spell's mana cost.
Flash
Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Lynx

Lumbering Satyr

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

Orbweaver Kumo

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.)

Scarwood Bandits

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)
{2}{G}, {T}: Unless an opponent pays {2}, gain control of target artifact for as long as Scarwood Bandits remains on the battlefield.

Jedit Ojanen of Efrava

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)
Whenever Jedit Ojanen of Efrava attacks or blocks, create a 2/2 green Cat Warrior creature token with forestwalk.

Lord Magnus

First strike
Creatures with plainswalk can be blocked as though they didn't have plainswalk.
Creatures with forestwalk can be blocked as though they didn't have forestwalk.

Zodiac Monkey

Erhnam Djinn

At the beginning of your upkeep, target non-Wall creature an opponent controls gains forestwalk until your next upkeep. (It can't be blocked as long as defending player controls a Forest.)

Hidden Path

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

Unseen Walker

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

Rushwood Dryad

Shanodin Dryads

Leaf Dancer

Zendikar Farguide

Elvish Champion

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

Righteous Avengers

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

Zodiac Rabbit

Willow Dryad

Weatherseed Elf

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

Ivy Dancer

Emerald Oryx

Heartwood Treefolk

Jukai Messenger

Zodiac Tiger

Somberwald Dryad

Elvish Pathcutter

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

Aysen Highway

White creatures have plainswalk. (They can't be blocked as long as defending player controls a Plains.)

Yavimaya Dryad

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)
When Yavimaya Dryad enters, you may search your library for a Forest card, put it onto the battlefield tapped under target player's control, then shuffle.

Cat Warriors

Great Wall

Creatures with plainswalk can be blocked as though they didn't have plainswalk.

Eladamri, Lord of Leaves

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.)

Zodiac Rooster

Mirri, Cat Warrior

First strike, forestwalk, vigilance (This creature deals combat damage before creatures without first strike, it can't be blocked as long as defending player controls a Forest, and attacking doesn't cause this creature to tap.)

Deadfall

Creatures with forestwalk can be blocked as though they didn't have forestwalk.

Dryad's Favor

Enchant creature
Enchanted creature has forestwalk. (It can't be blocked as long as defending player controls a Forest.)

Scarwood Hag

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

Graceful Antelope

Plainswalk (This creature can't be blocked as long as defending player controls a Plains.)
Whenever Graceful Antelope deals combat damage to a player, you may have target land become a Plains until Graceful Antelope leaves the battlefield.