I'll update it on next update, maybe adding beast hatching would work as well.. I'm also thinking of nerfing the evolutions points req by lot because it's hard.
While on it I can expand the rebirth upgrades as well.
Foe sure sounds good yeah I tried crushing all my qi stones I got about 1/1000th of enough to level from rank 8 to 9 lol and eggs definitely sound cool I remember in a manhua I read called demonic emperor the mc got a great one that way stole it from a thunder phoenix I think, it'll be good for late game spirit beasts especially, looking forward to that one maybe I can kill the bosses and have a chance to steal their eggs 🐉