Patron of the Orochi

Patron of the Orochi

Legendary Creature - Spirit | Power/Toughness: 7 / 7 (CMC 8)
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.)
: Untap all Forests and all green creatures. Activate only once each turn.