Really you have no "procs". You could put something like Inner Beast (any of your "must have 5 stacks of wrath to use" abilities) there so your made aware when you are at 5 stacks and they are available to you. But unlike BLM just because you have 5 stacks doesn't mean you should immediately use 5 stacks.

I do the same thing for BLM (and BRD.. I don't play WHM) but most classes don't have the random procs like BLMs do to keep track of. Really just BLM, WHM, and BRD.