What else does he even do? The only thing I even remember of him is the lightning attack and him laughing and screaming about mortals a bunch.
Unless you're thinking melty hulk mode Merged Zamasu, which is pretty unlikely, and even then he still didn't really do anything notable.
Lightning attack, Blades of Judgment, Holy Wrath, has a halo barrier, regeneration, energy blades, Flames of Retribution (eye blast), etc.
There's also potential with using his grotesque form as well, people have floated the idea of making him go into that as an install, or when his health becomes too low. That can give him wind blasts and what not, and obviously further reach. There's a lot of potential there, and that's not even getting into using the manga for inspiration, so again, saying he's like Raditz is completely disingenuous, regardless of whether you like the character or not.
Also you watched that arc, so I dunno why you're acting like you don't know this :P