Success! Concept is to pull all the mobs into one area. It kind of works (we won the map), but is a little slow. waves 32-35 was 20 mins combat time. I don't recommend starting at 22, because the golden heroes stop coming on wave 23, so start there if you're going for armor. I haven't tested it on Rtuhless yet, but worked on NM.
Party: 1 TB Monk, 3 summoners with huntress/monk pets
Hint 1: The stack is layed out basically as shown, Lts and mushroom in the middle, and a stack on each side of Warden stuff, using cross fire for the East and West Cloud Towers, And the South facing Cloud on the far side so it has Line of Sight on the South Crystal.
Hint 4: This ogre's job is to draw the wyverns in, place him on the crystals, this should help so they don't get mass stuck in the far West (Credit Renim for the add)