As long as your devotion to blue is less than five, Thassa isn't a creature. (Each U in the mana costs of permanents you control counts toward your devotion to blue.)
At the beginning of your upkeep, scry 1.
1U: Target creature you control can't be blocked this turn.
![Thassa, God of the Sea [The Lost Caverns of Ixalan Commander]](http://tothetablebgc.myshopify.com/cdn/shop/files/9f9db424-e668-48b4-b275-7b35be4e1bf8_1f3c3e67-e404-4b7e-9738-cfcb86d4d6f8.png?v=1776561447&width=1445)
