Again, based on treadmills build, but trying to simplify as much as possible.
In the end, it wasn't faster than the other builds I've done, but build is way simple, so that's nice. If you don't mind an extra minute in combat, this is the one.
Party: 1 TB monk, 2 summoners with huntress/monk pets, 1 summoner with Squire/EV pets
Hint 5: TB stands here facing SW, usually TB lasts through end of each wave.