As long as your devotion to blue is less than five, Thassa isn't a creature.
At the beginning of your upkeep, scry 1.
1U: Target creature you control can't be blocked this turn.
When purchasing this unique product, please keep in mind that this card only appears in the Secret Lair Drop Series: Stargazing Sealed Product and will ship out to you after the seller receives the product directly from Wizards of the Coast.
The estimated time frame for sellers to receive stock is not fixed, so it could be anywhere between 1 - 10 weeks for delivery.