That would certainly reduce the skill curve a bit and allow for a more consistent better setup. As tank I can pay attention to my own debuffs, just turn off debuffs from allies and watch then proc naz when the debuff is low. For healer, I can’t do that. The debuffs dance and I’m seeing all 4 group members debuffs plus minor and major vuln icons look very similar, so I just have to proc naz after I see colo go off and hope it worked.