This is one of the most hilarious cards I've seen.
The best part is the combination of the flavor text and what actually happens if this ever connects with Thassa. Kiora reminds me of a ten-year-old Timmy whose octopus was the biggest creature in her first pack.
To be fair to Kiora, she's not saying this creature matches Thassa herself, just that she (Kiora) can throw down at an even keel with Thassa easily.
Probably just as arrogant and wrong, given Xenagos would rather be a god than a Planeswalker, but less nonsensical