Is there any criteria to how spirit of guyia casts those harvesters or is it totally random?
There have been times when he casted like 7 harvesters in a row and I had to purify on cd and then some. Plus die somewhere and reset the fight due to the absurd amount of phantasms. I mean, it's not that hard, but it's insane trial and error aka the staple of bad design. In addition to this, what kind of fight needs you to die with the phantasms away from the boss to reset it otherwise you get shredded to pieces because they are too many? You really can't split the boss and the phantasms because those have insane follow range.
There have been times when I would kill the boss in 2 minutes and times when I wouldn't be able to get him to 50% before lockdown.
The problems with this boss would completely disappear if the harvester cooldown was something like 8 seconds so you actually have time to attack him after he plants a harvester and you purify it. Right now, there are times when you purify on cd and still have like 2 harvesters up. What's that about?