This is my "I don't want to think hard anymore" build. It's not fast, but you aren't gonna lose either. Just Tower Boost rhough to vistory. I use the first wave to upgrade as far as possible, then swap in the last summoner and upgrade with the tower booster after that. Smooth sailing, or should I say "snailing" lol.
Party: 1 TB monk, 2 summoners with squire/huntress pets, 1 summoner with EV/monk pets
Alt Party: 1 TB monk, 2 summoners with squire/huntress pets, 1 builder guardian