One idea is what Jetz said a while back:
Been thinking of some "combat withdrawal" mechanic that'd weaken a boss that went for a while without a kill.
Another idea, is shooting off like a firework or something from the boss' location after a set amount of not getting any kills. A signal revealing where the boss is or something.
How about a different goal if mocheeze is picked, either by making them cap the point, or something else
I'm thinking it would be best to keep the same ruleset for every boss we have, lowers the amount of confusion. Still a good idea if normals capped say, 3 times, they'd win. It would solve the boss camping issue, I believe.