3-4K in primary stats, upgrader adept until all towers and walls are max, then can pretty much just tower boost the rest.
wave one build auras beams forest golem and as many owl's as you can, might need a dps hero for the wave, and can build the rest of towers after this wave auras just behind the crystal, doesn't need to cover the back of the bridge
hint 1, 2, 4 on the beam on middle of bridge
hint 3 on front beam, web wall can be infront of wall and reflect. make sure you can't walk through the bulwarks after placing them, with their heals + tb and max upgrade they take almost no damage from the bosses haven't tried it just yet but they may be able to just solo the bosses themselves (the santa boss can jump over the wall but he always keeps trying to kill the wall so you shouldn't die as long as you sit ontop of or on the other side of your tower buff beam)