Bloomburrow Commander

Squirrel

Chatterfang, Squirrel General

Legendary Creature — Squirrel Warrior

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

Unknown Event

Legendary Creature — Eldrazi Squirrel

Devoid (This card has no color.)
Flying, Trample, Forestwalk, protection from non-Squirrels
When you cast Emrakul and Chatterfang, create 15 1/1 green Eldrazi Squirrel Scion creature tokens with "Sacrifice this creature: Add {G} or {B}".

Emrakul and Chatterfang

30th Anniversary Edition

Creature — Nymph Dryad

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

Shanodin Dryads

Dominaria United Tokens

Lord Windgrace

Jedit Ojanen, Mercenary

Jedit Ojanen of Efrava

Token Creature — Cat Warrior

Cat Warrior

Time Spiral Remastered

Creature — Dryad

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

Yavimaya Dryad

The List

Legendary Creature — Cat Warrior

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

Creature — Cat Warrior

Elite Cat Warrior

Willow Dryad

Dragon's Maze

Creature — Insect

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

Woodlot Crawler

Dark Ascension

Somberwald Dryad

Commander 2011

Legendary Creature — Dryad

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.

Chorus of the Conclave

Mirrodin Besieged

Creature — Human Rogue

Koth's Courier

Salvat 2011

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.)

Mirri, Cat Warrior

Zendikar

Creature — Elemental

Zendikar Farguide

Magic 2010

Creature — Antelope

Emerald Oryx

Eventide

Creature — Hag

Swampwalk, forestwalk (This creature can't be blocked as long as defending player controls a Swamp or a Forest.)

Stalker Hag

Lorwyn

Creature — Goblin Rogue

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)
{2}{B}, Sacrifice this creature: Destroy target Treefolk or Forest.

Boggart Loggers

Tenth Edition

Rushwood Dryad

Ninth Edition

Creature — Monkey

Zodiac Monkey

Champions of Kamigawa

Creature — Human Monk

Jukai Messenger

Odyssey

Creature — Centaur

Leaf Dancer

Invasion

Creature — Serpent

Slinking Serpent

Mercadian Masques

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.)

Vine Dryad

Starter 1999

Creature — Cat

Lynx

Portal Three Kingdoms

Creature — Rabbit

Zodiac Rabbit

Zodiac Tiger

Classic Sixth Edition

Cat Warriors

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.

Unseen Walker

Tempest

Creature — Treefolk

Heartwood Treefolk

The Dark

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 this creature remains on the battlefield.

Scarwood Bandits