The tag obsidian-femur appears in these 2 comics:
- 4417: Ultimate Power (Tags: mille-feuille, faye, bubbles, brun, skull-master, obsidian-femur, union-robotics)
- 4437: The Future Of Skullmastery (Tags: jim, skull-master, faye, may, bubbles, obsidian-femur, union-robotics)