I'm coming back to the weak auras and I just can't seem to get a lot of my auras to trigger!

For example, I want to make an aura that shows when an enemy warrior just pummeled me even if he missed. I would prefer if I could get it to even show when any hostile warrior in the area pummels anything.

I know add-ons like interrupt bar do this but I want to be able to set up a specific aura for this and other cooldowns. Can anyone help me out?