Eventho Ananta will be a Future themed Game, i can suggest something wild
Rock Drake Themed Mounts where you can glide and go Invisible with it and cling on to Buildings
And Managarmr Themed Mount where its fast can dash into the air and can glide with sonic speed if on winter it can freeze enemy
(I got This Inspiration from Ark Survival Evolve)
(Also Idk if ya agree with this...)