I know the entry for this was bug’d for many. But today, I was able to enter and do it. 20 waves of mobs. I love it. I failed at wave 18 on my first try becoz I dont know what what I was doing. After coming up with new strat and learning how to properly deal with each kind of mobs using all the utility toolkit of my Class, I finally was able to make it to wave 20. Multiple mobs to me is harder than wave 20 Boss.
I like this stuff. I had a blast. I want this kind of stuff allowing me to be creative with what I have. Good thing, I chose a Hunter as my Main. Finally, I was able to use all my tricks.