Your search for "Forest - Guru 1" revealed the following:
Forest - Guru (PGRU) from Guru, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Terese Nielsen Card Text:T: Add G to your mana pool.
Silvy of the White Forest - OP28-EN005 - Super Rare from OTS Tournament Pack 28, available at 401 Games Canada. Rarity: Super Rare Card Text:If this card is Normal or Special Summoned: You can add 1 "White Forest" Spell/Trap from...