Tavros has cat allergies and has only been prototyped once. What if GCat shows up, triggers Tavros’ allergies, and...
ACHOO!
...He crashes into and fuses with GCat! It’d make a nice parallel with Jade and Bec sprite-fusing, plus be all kinds of hilarious and ironic.
Plus, Tavcat? Catros? could be super effective against Bec Noir and PM because cat distraction + animal communing powers + First Guardian powers. Although he’d probably be a perpetual sneezing mess.
Even if this doesn’t happen, I have a feeling Tavros’ cat allergies will result in him inadvertently double prototyping with something or someone. And, also, Tavros controlling GCat would make a great distraction for the Becs. (As would Jaspers.)