My setup I used to finally beat this map for the Mythical Real Time Strategist achievement

The enrage auras are crucial in the spots they're placed at, they clog up the lanes and body block the ogres so they slowly individually trickle in, so the archers and ogre minions only have to deal with one ogre at a time, rarely two
The enrage auras should be a good distance away from both the ensnares and the strength drains, ensnares to prevent slowing the wave down too much and the strength drains because they affect how much damage enemies deal to each other, it's fine if they overlap a bit but a majority of the enrage should be free of both
If possible, make sure the bottom ensnare does NOT overlap with the buff beam, if it does overlap it'll cause it to intersect with the bottom spawn and the enrage, it's not a huge issue but it does wear the aura down and slow down the wave
The physical beams should be placed right up against the archers and ogres, on top they aren't required because the minions block the stairs anyway but bottom and left need them
Bottom also requires the minions to be somewhat close to the core to be able to catch stray wyverns
The DU costs for beams don't matter, just do them as quickly as possible while covering the right spots, you'll have a LOT of leftover DU even if you waste some with beam length
Occasionally a Goblin Copter will appear near the bottom, just repair the mage in Overlord to make sure it doesn't die
Each wave should be done as Summoner (on last it isn't required but Overlord is very useful for repairing), no emulator characters are needed, you'll be spending most of the waves sitting near the top in Overlord while upgrading and repairing, popping out of Overlord every now and then to pick up mana

Build 1:
Place the gas traps, ensnares, top and bottom strength drains, top and bottom archers, top and bottom mages, and two of the left archers, one in each spot, you should end up with 0 leftover mana
Wave 1:
Place the remaining left archers, the left mages, the spider, and as many ogres as you can, it's fine if you don't finish these during this wave, just finish them during the next
Build 2:
Place the top and bottom enrage auras, the left strength drain, and the buff and physical beams, after that do as many of the missing minions as possible before the wave starts
Wave 2:
Continue finishing up the minions, once minions are finished upgrade the buff and top/bottom physical beams
Build 3:
Place the darkness traps on top of the gas traps, and place the middle enrage (optional)

After everything is placed, upgrade the buff beams first, if the physical beams get damaged upgrade them to repair them, after that it doesn't really matter what you upgrade as long as nothing goes down
The only minion that needs an upgrade is the mage at the bottom to prevent it from dying to the previously mentioned Goblin Copter, otherwise it again doesn't matter much because enemies are so spaced out from the enrages