Build auras/beams/traps/DSTs first. LTs and summons are built in 2nd build phase. Before the first wave starts, use a zero tower range Jester to move the middle EST so it overlaps the crystal and sits just east of it. Then move the gas trap by the south crystal so it overlaps the south crystal and sits just south of it. When combat starts upgrade the south buff beam asap. Once the beam is capped and your auras/traps are upgraded a couple times, move to center crystal and upgrade the beam there. Lastly, move north, and upgrade spam like crazy. You'll have a lot of gassed mobs to get mana off of. Afterwards, move the traps a bit south so they overlap the crystal and sit just northeast of it. Second build phase add in the LTs and summons, and use your summoner to upgrade the east beam so you dont have to actually walk down there yourself. Rest of the run should be pretty straightforward. I like to run it with a purity bomb adept to clear out the mobs on the south core every so often. I've also run it normally with an upgrade jester all the way with no issues.

I run this with 4k stats and can comfortably fit 4-6 players all throughout. For lower stats run it solo all the way through first to make sure it still holds. You could also add in two spiders by the DSTs if you're having trouble with ogres, but the currents should continually sweep them away and keep your towers safe. If your summoner minion HP is low, add in a reflect beam on the southwest corner of the southern minion wall, or even extra mages if necessary.