What's a good weapon for a character with time manipulation?

I'm working on a character who wears a mask that looks like a clock, and he has time powers, but it takes stamina, energy, and focus. He can slow down time in fights, or pause time for a situation that could have killed him, and he ages slowly.

He's more like a Batman-esque character who's a detective who works with an organization that had people with superpowers sorta like the Public Safety Devil Hunters from CSM.

But I want to give him some weapon that fits for his time powers.