First off, I know how to complete this round of Vateshran Hollows and can clear it no problem. Rather, I have a mechanics question as I work on shaving time off my runs and getting no death more consistently.

My overall question is can the mechanic where the Pyrelord becomes briefly invincible and ignites his sword be delayed? I know that it happens when three pyres are lit, but extinguishing a pyre or two doesn't seem to prevent this mechanic from playing just the same as if I hadn't extinguished them. I could be mistaken, but this seems to be happening consistently for me, so I'm wondering if I have to extinguish them all by the time it would play, or perhaps there is a timed mechanic hidden somewhere in there (ie every 30 seconds he lights a pyre and at 1:45 he does the invincibility mechanic).

I have a feeling the answer to this will be increase dps to skip the sword igniting mechanic, but I'm hoping someone can enlighten me as to how it's actually supposed to work and whether it is avoidable like I'm hoping (after all, what are the pyres for then besides the achievement?). I've looked through all the forum posts on this fight and in online guides and Youtube videos and none do a satisfactory job actually explaining these mechanics.