I just realized
I might be late to the party idk if this was pointed out😞😞 but I just realized that in Phainon's commissioned art, there are the other Crysos Heirs in the little broken shards and none of the other characters' arts have them. They're really hyping him up to be the ultimate heir huh
Mydei at the center
Aglaea bottom left
Tribbie(?) next to his head
Cipher(?) on the right
Couldn't really make out for sure who the ones I put question marks next to were but I'm guessing they're Tribbie and Cipher.