As Batman shows, you don't need to have powers to be good at what you do. Several of his villains prove that. One that takes it to a very interesting level is the villain known as Clock King.
Temple Fugate or William Tockman (depending on the story or medium) prove that sometimes you just need the patience to examine every aspect of things and time them. Both are able to perfectly study routines, patterns, schedules, and then work it to their advantage to make the timing perfect. Even when things don't go well, they know the details that can ensure success for them, and defeat for their foes.
The Clock King has worked solo, and in groups as part of the Suicide Squad. Timing is everything, and where clocks are concerned, they are king.