Yes i know about kachina and how the new sets are theoretically better for a "higher boom crit" but had i done any of that the floor 7 fatui wouldn't even have survived for me to hit with a stacked sharky bite, and yes i know attack doesn't influence her much at all but since i couldn't use kachina i figured double pyro and double hydro to stack as much base stats and dmg buffs as possible wouldn't hurt.
To be completely honest this build was thrown on her and i wasn't expecting it to be good at all, but it turned out to be my first ever 1M+ dmg in the game, in the open world it is still super reliable, however i do switch thoma and xingqiu for kachina and furina for more reliable exploration purposes because let's be fair, i don't need more than 300k dmg to be blowing up everything anyways... Hell she is doing 575k in the open world with just a fully stacked vaporize and i'm more than happy with it.