2. What if I respond by stacking magic armor, replenishing it mid way, and then chasing you down?
Typically you don't do this because enemies can focus on either one or can alternate themselves.
4. What if I can't be stun locked?
Then your poorly designed?
No, I am a boss mob with a specific mechanic in mind or I have some buff running that gives me immunity to certain things that you didn't dispel etc. etc.
It's funny how you say I don't do this at all when I generally do because I have enough magic armor to do it with (or the resources to deal with it) and more than enough to trigger warlord after reaching you.
Everything depends on context which includes resources and game plan. The AI doesn't typically do any of this nor is it on even gear with players because it's not the AI's job to make it a living nightmare - that's a pretty crappy narrative.
