Forgot the most obvious:
28. Fighting Super Villains (and doing the badly needed reconstruction work afterwards)
- Mxylpltk (or however that one is spelled)
- Solomon Grundy. (Gruny smash!)
- Bizarro
- Darkseid (although that could also count as fighting an alien invasion...)
- the Green Kobold (Wait, that one belongs to Spiderman. Would still be cool.)