After PS Changes: Replace some warden towers with hermit towers. More info coming soon. 

Very simple set up for quite low stats. For lower stats, tower boost monk required to hit all waves but even low stats can do at least 23-30 and get you gear to get higher stats. Sit a tower boost monk just east of the stack (just drop down onto the grass) and shooting east. 

General idea is all towers facing mostly north and south, each a little bit towards the west. Only one single cloud tower points directly east. 

The crystal and stack are surrounded by four 1DU reflection beams. A minion wall west of the crystal can help for very low stats.

For higher stats I tend to take off all gear on aura monk to place them closer together, as the strength drains can die quite quickly if overlapping the enemy spawns and your TB runs out because you're AFK and not paying attention. You don't really need the golem but for lower/mid stats it helps you AFK a bit better when the djinn flood comes in towards the end of waves and your TB might run out. 

Use a monk guardian summoner to boost the two east stacks into the buff beam when its fully levelled up