My testing patterns - what next?

So recently, I've been playing a lot of physical-heavy classes (Crusader, Berserker, Paladin as a spellsword), focusing on the directionally Vicious dungeons (except Demonic Library, should really get to that) and sometimes going for a Purist Den or Venture Cave (they're ... yeah, pretty easy by lategame, but I really enjoy the occasional ROMP when I don't have much time. This is where the ten-minute DD game is hiding
).
I've been enjoying some success by experimenting with Goblins. They're not invariably awesome, but some combos have worked interestingly. Proud to say that I've had major Goblin warrior victories in every direction except north now. Maximising their use has required some careful thought and the right loadouts, but with the correct understanding they make *surprisingly* good Crusaders -- though you can't afford to be clumsy about it.
I've been worshipping most of the gods, with a special focus on GG and a tendency to ignore Mystera -- more as a result of testing priorities than anything.
Given that -- quite amazingly -- the only building in my test Kingdom still NOT fully upgraded is the Witch, I've decided that I'll be testing the Witch quest tree this week, among other things. Am probably going to be tweaking EM, so she'll go up the test chain too.
What else do you think I should be experiencing in my playtime right now? I'm not going to take everyone's suggestions, I'll be looking for the most frequently recurring ideas and go with playing those.

I've been enjoying some success by experimenting with Goblins. They're not invariably awesome, but some combos have worked interestingly. Proud to say that I've had major Goblin warrior victories in every direction except north now. Maximising their use has required some careful thought and the right loadouts, but with the correct understanding they make *surprisingly* good Crusaders -- though you can't afford to be clumsy about it.
I've been worshipping most of the gods, with a special focus on GG and a tendency to ignore Mystera -- more as a result of testing priorities than anything.
Given that -- quite amazingly -- the only building in my test Kingdom still NOT fully upgraded is the Witch, I've decided that I'll be testing the Witch quest tree this week, among other things. Am probably going to be tweaking EM, so she'll go up the test chain too.
What else do you think I should be experiencing in my playtime right now? I'm not going to take everyone's suggestions, I'll be looking for the most frequently recurring ideas and go with playing those.