Patron of the Orochi [Betrayers of Kamigawa]

Set: Betrayers of Kamigawa Type: Legendary Creature — Spirit Rare Cost: {6}{G}{G} Snake offering (You may cast this card any time you could cast an instant by sacrificing a Snake and paying the difference in mana costs between this and the sacrificed Snake. Mana cost includes color.) {T}: Untap all Forests and all green creatures. Activate this ability only once each turn.