To me rock defiance bg's are the most op theme outside of dwarf to me. They do have longer build up time compared to dwarf but man are they discouraging to fight against! This was just a random test with some stuff. Rock forger gets the slow guys moving with vitalize, and sealer basically creates free relics to trigger holy light or knock back targets for rockslinger. Medal of valor makes the hp/damage generation uber. I have divinities touch and blink in there because if you use both you have a good chance of winning the game in my experience, but I am open to dropping them to get more themed focused bg. I am not talking out my tunnel earth 3 Earth Elemental. Other then that, I await your feed back!