Gunklet and Gunklord

https://www.deviantart.com/cumalee/art/Gunklet-and-Gunklord-BUNDLE-Open-for-Adoption-1143694540

Gunklet, a rare sewer wanderer, is the stuff of urban legends, with glowing eyes and a shy nature that keeps it hidden in the depths. Upon evolving, it becomes Gunklord, the fearsome ruler of abandoned sewage plants. Gunklord shapes its lair into a toxic fortress, meticulously guarding its treasure hoard of shiny objects while punishing any intruders with overwhelming power. Together, they embody mystery and dominance in the filthiest corners of the urban world!