Ice Crash ignite, 1 shot bosser Garbage/SSF gear template

Hey guys, just sharing an idea for a bossing setup I had. I heard there was going to be a gauntlet this league and I'm truly awful at boss mechanics so I was trying to find a setup that would let me skip most of them.
I knew I wanted to use pyroclast of sabotage for bosses since it is an easy but cursed way to get insane single target. I kept struggling with dps uptime though so I thought maybe we could just use pyroclast to snapshot a giant ignite and refresh it with defiled forces (arcanist brand + curse).

TLDW - story of the vaal + Pyroclast of sabotage + perfect agony + ambush + slam = large dam

Template PoB (level 58)
https://pobb.in/bfA0en5elHh8

Like I mention in the video this is not a real build, this is just the template I was using as a proof of concept. The character in this video is not res capped, has a single aura and is literally using junk rares I had in my stash. I'm not sure whether I would play an entirely different build and respec to something like this for when I want to rip to bosses or if I could actually play a melee ignite build that just unchecks perfect agony when mapping (unless I drop an ungil's harmony but even then probably still too much investment).