need help to win fights against Haas incarnations!

[Zingo]

How the hell where you all able to kill all seven haas incarnations? I get slaughtered every time (more or less).
Do you have a “golden strategy” to kill the seven incarnations?

I’m a paladin at level 24 with an army of hunters, unicorns, knights, royal snakes and inquisitors. So i'm not that week.

What is the best strategy to win these fights against the seven incarnations?