(THIS BUILD IS LISTED AS "ANY" EVEN THOUGH IT ISN'T PURE STRAT JUST SO IT CAN SHOW UP IN BOTH CAMP AND SURVIVAL SEARCHES.) Stats and Build
Upper + TB + 2x Hunt Summ + Builder Guardian during waves. You can wheel with an upper jester to shave a few seconds off of the last 10 slogres.
Upper Shoots at hint 2, arcing from the top of the tree so Serpent Staff's clouds land in the spawn. TB stands at 3, shooting at 4.
Make sure the Pylon hits the tower stack AND the east auras. East auras are placed right next to crystal. Electric aura is used on west core to kill wyverns. Buff Beam should hit west auras.
Works nicer for campaign since you don't risk it getting instagibbed by mech, and it's ~45 seconds-1min faster than my other build (8:00 - 8:30 combats if you wheel properly).