Why are you building Jotun at all? Thenasil makes more sense, but isn't Black Knight better? I'd say Tayrel, OB, Apo, Maus Mage and Ghrush, but BK instead of one of those last three might make sense too. 

MM and Ghrush aren't ready either. Which 6* only???

Please. Someone has to understand my question. It's a pretty simple question

Simple answer; GET THEM READY.

Then Black Knight and... Seeker, I guess.