Basic Idea is to camp the spawns, so we move out the stacks as far as we safely can.  They can dominate with summoners on them only.

It's fun to see the tracking shots path around corners.

Build Auras, then warden stuff, then build at least 2 SAMS at each stack and the buff beams, finish in 1st wave combat, have a summoner on each stack from the start, and upgrade buff beams

Second wave build oil traps.

Party: 2 summoners with monk/huntress pets, and then whatever combo you want of additional summoners, or EV builder, or DPS, just pick your poision.

I am curious to know if using 4 summoners and getting only armor drops, you might see some Ult armor (and better)???

Hint 1: I think there may be a better angle here that can catch every avenue, not worrying about the North, because the stack in the tunnel takes care of the copters.

Hint 2: this is built at the North end of the wooden archway.  It has a nice open line to the spawn and an opening to the goblin copters that spawn there.