Did you actually die in CT with all that simple machanic ? I know it has some "Machanic driven" but It's not that much.
and all that you suggest is something I call very poorly design and not very creative at all that you have to die in order to boss to get something that make it hard??er?? since complain about "machanic driven" if you cut that off I don't know what are going to make someone die at all unless you make it that boss hit harder or more HP that you have to hit it for like 1 Hour then someone might as well die because they are sleepyor you want to cut off aggro table off to then it going to be like gw2
even tho T9 has some machanic like meteor that I think it's the worst , but I rather deal with hundred of meteor than what you suggest
boss heals himself by 1-4%?
Lunar dynamo that if you can't dodge it boss get heath ........................Better than die
boss deals more damage?
It's already has it in some of the boss that increasing by time ]...........................Still better than die
boss summons a minion that is strong?
in T6 that you have to let the boss suck you in in order to not spawn the infinite add ] ........................Still better and creative than die
What about randomly losing aggro and going after a random class?
It already has boss that random hit skill to someone like ifirt EX that healer have to keep distance from party and still better than die
What about knockbacks, he knock backs the tank if he gets stunned too much and throws him back?
really ? since boss already have stun and knockback already then you just want it to combine together and call it NEW?