Just did a run and had to stop with both kraken at 1/2 health because it took too long to kill the ancient dragon with the harpoons but our defenses held up very well until our repairer and rest of team wiped, leaving me to fend for myself. Anywho, here is the general team distribution:


4 players:
3 dedicated damage
1 repair or repair/dmg hybrid
(Any of these four must build before the first boss spawns.)


I will update the build when I have the chance to but the idea behind it is you fortify yourself in the center circle. The entire circle is enclosed by an ensare, electric and strength drain auras and heal aura. In the middle is a buff beam cutting the circle in two with four harpoons across it, two facing up and two facing down. The harpoons on the outermost of the buff beam face up while the two harpoons in the middle face down. A wall of archer minions blocks the south of the circle and a few rest on the top right side of the circle. On the top left side are no archers but instead is a gas trap. This way, when you are facing the boss such as the goblin mech or the kraken, you can draw their attention to the south side and can help them kill faster.

Build. Please assume the crystal is where the circle is in this map, the mini map hasnt been updated but this is what your setup is: http://ddplanner.com/?l=9092,bossrush-nmhc


During waves, I would suggest have the repairer be a boost monk who can jump in the middle of the circle and heal up some towers or if you don't have a boost monk, another class can do (in fact we had a squire who was repairing and upgrading towers.



I would suggest the repairer to have a app or huntress guardian (if they think they will be in the circle most of the time) or a mana pet like a genie or djinlet to upgrade and repair the towers. The dedicated damage heroes should have a pet who can heal them (monkey or Cupid) or if your running a squire or monk who needs mana for the hero boost skills then I would suggest a djinlet .