Independently one of our developers was curious about this and worked it out. We also ran some experiments to verify it. The results are fairly similar to grysqrl so that's good!
Details here: http://handelabra.com/blog/2014/12/19/super-scientific-experimentation
Ha! Wow - that's great stuff. Thanks, MigrantP! 
I think it's safe to say that experimenting on the Ennead is the worst idea ever.
In challenge mode.
I think I already mentioned that somewhere didn't it? 
Ah, so you did.
Well, as long as we are mentioning who said it first…
I mentioned it in my very first post on the forum, you just didn't see it because it was white text.
I actually believe that.
I posted it on the old forum, in one of the threads that didn't survive. Before I had ever played the game.
I texted it to Christopher before he had thought of The Ennead.
/causality
Impossible.
Christopher, does that mean you thought of the Ennead before you could text?
Time-travel. Making the impossible possible since 0.
Posting this from another thread:
Fixing the formatting on the quote from the other thread, because the forum hates quotes.
Despite the solid odds for Nightmist and Setback, I don't think I'd ever try this with them lest bad things happen. The top 3 though? Gold.
Nightmist isn't so bad, if you have a reasonable health total. Setback, on the other hand...
Heh, grysqrl actually posted that originally on this thread, post #9. 
He didn't have the WotC heroes or Guise in it