I like to think of these two as long-lost brothers, brought together again by fate to combat otherworldly foes...using their own familial ties to darkness as a tool to aid them...wait. oh god. I'm just re-inventing supernatural right now GET ME OUTTA HERE!!!
(in all seriousness, I've wanted the green batdog for a while and I'm so happy to finally have one! the christmas 2019 addition to the litter is really cool too and I think they go really well together!)