Okay, it has now gotten ridiculously easy. Tekron and Umkas were so easy I barely had to use my Paladins for resurrecting, and Elon wasn't much harder. I blitzed it easily (except the Gremlin guy which I haven't done yet) and so now I am up to level 46 and 250+ wins without loss. I've got so much money and stuff I don't know what to do with it.
My standard team has been Paladins, Inquisitors, Red Dragons, Archmages and Royal Snakes for a LONG time now. I had to trade out the Royal Griffins eventually due to their morale problem with the Red Dragons. The Reds are so good that they are the tank AND the main destroyer. And the Inquisitors can resurrect them. An easy game, this.