Overall, it's not fast, mob count is ok, but it does work. Probably better to farm Survival then messing with this. The cloud Tower shooting inward (toward the North or South Crystal, kind of sits out on its own, as far out as you can get it.
Party: 2 TB monks, 2 summoners with monk/huntress pets
Ideas: Could probably remove the auras on North and South Completely (if we ensure the traps are also catching the wyverns) Could add Spike trap and Oil Trap even. This might let us get more ranged shots on the stacks (Cloud or Seed bomb)
Now showing with traps only on North and South (adjust to auras if that's you're jam)