1. At endgame, most bosses are immune to stun anyway so it doesn't matter if it's boss you're concern about. 2. You don't have Rage of Halone/Shield Oath yet so it's understandable why you think that is a problem. Once you get both, your enmity sky-rocket and you can even switch to sword oath for a while. 3. Bosses have intervals of when they will use stunnable skills. Just watch out for those intervals. This adds a bit of depth into a job that is almost just 1 2 3 combo. You're asking for too much here.
