Thassa, God of the Sea  (3) 
Legendary Enchantment Creature — God (5/5)
Indestructible
As long as your devotion to blue is less than five, Thassa isn't a creature. (Each  in the mana costs of permanents you control counts toward your devotion to blue.)
At the beginning of your upkeep, scry 1.
: Target creature you control can't be blocked this turn.