Aquatic Species for a future update

I’ve had this idea for a while now and i want to talk about it but it’s this. An Aquatic update which can include a whole load of creatures stretching back from the Devonian Period to Cenozoic era some ideas are gen 2 commons and rares of some memorable creatures like archlon mosasaur elasmosaur Kronoasaur etc and with the hybrids just totally out there.

Now how would they appear in the real world well personally tongue and cheek way but they just appear like all others

Arena wise it would be a swappable arena from land to sea

Ideas and c&c are appreciated

Bruh -_- I can do this please

I mean I can’t

Hey everyone, please remember to keep things respectful :sauropod: