I run around 12-13mins combat with 2P (Upgrader/TB) till boss wave and 4P (3APP + TB) on boss I cba multi-boxing.

This can be pushed to be faster with another TB and wheeling + guardian(hunt/monk) pets on the other splits placed on Hint 3 and 2.

Pretty safe build, only crystal that is problematic is East crystal with the golden wyverns sometimes hitting the crystal.

Build all buff beams, auras, walls, all towers EXCEPT GOLEM on Hint 1, all towers on Hint 2 then Hint 3 with what you have left, prio building clouds first.

Black arrows are where you point the cloud towers, blue arrow is for DST angle

3 DU phys beam.

Building Hint 1:

-> Don't build golem, but will be placed in front of the warden towers facing where the boss spawns, i.e. Golem on the end of the buff beam closest to the ledge.

-> Build Warden towers on the other end of the buff beam from the golem

Building Hint 2: This is ontop of the building and on the railing starting where the rope touches the ledge. You can use the lamp near hint 4 to get up there.

Building Hint 3:
-> Place the cloud towers on the pillar wall

-> Build remaining towers on Hint 3 with cloud towers as priority to build first.

Waves:

-> Tower stack upgrade order; Hint 3 > Hint 2 > Hint 1

-> Place TB shooting west on DST from Hint 2 stack

-> After upgrading, I just stay on Upgrader App and mana bomb on Hint 3 or stuck spiders near Hint 2

-----> My mana bomb does zdps (zero), I just do it to soften up the golden wyverns on Hint 3 a bit.

-----> You can also just wheel, but I believe a proper mana bomber would perform better.

Boss: Can afk and TB till boss dies; it dies bit slow but I've never had a crystal hit before it dies.

-> Bring all splits with guardians to boost warden towers at hint 3

-> Place TB behind crystal + golem

-> Drop mana for tb if needed, boss kill can be slow depending on the targeting of the towers.

-> Alternatively you can also deal with the other crystals if they get hit while the boss dies.