Just wanted to share that I'm using five of these characters in my print-on-demand TCG called Rüniverse. https://silent7seven.com/
Beetle Rider-> Implin Chariot
Bluk Bluk -> Grumb
Owlbat -> Grumbear
Teratoma -> Pupil of the Storms
Vapor Knight -> Chall
I hope to be able to use more of the characters in future sets :)