Build everything except for south seed bombers on first wave. Yellow arrows are DST angles, green arrows seed bomber angles. Upgrade buff beam east, then south with your adept/jester and mid with your tb (on rooftop). After upgrading buff beam on top, drop down with your tb to aggro spiders that may otherwise get stuck with no aggro target in range.

Upgrade seed bombers to max. Mana bomb/wheel any mobs at the end of waves to speed things up.

On last wave add apps with huntress (and perhaps app if you don't dps) guardian on bombers. I recommend bombing once during the wave on south crystal since there's a very small chance a Djinn may not be tagged enough by the LT and desummons the physical beam from behind the tree. Half the time I don't even bomb there and it's fine, but it has happened on very rare instances. Dps App is nice as extra support but not necessary. Heal phys beam if need be during boss fight. Should only be needed once.

Make sure at least one seed bomber on the south is covering the east wyvern/djinn pathing, in addition to the single one facing northeast to cover both mob lanes for stray wyverns. Can also face it towards boss as well at own risk.

Video of a run: https://youtu.be/oMPt3QgZJJ0