I don't see a problem with nercoing a build thread. Dr. Doom put this out there, someone dug it up and wants to try it.
bump which weapon should i use for this build
Sankis + Triumvirate (6 % fire dmg) or Maximus for higher damage ?
The term adds X% to fire damage actually affects all damage, it's confusing and awful wording I know. If you use a triumvirate, I recommend getting a 1Her like what I have equipped for this build. A spear or mace (not echoing fury though) would work even better. Make sure it has a socket, over 35% enhanced damage, life steal. And, in order to make hydra not a complete waste of a slot, you should socket it with a marquis ruby. Sankis is usually a bad option because you want that extra fire damage but you lose so much damage with a sankis over a halfway decent rare that it doesn't really make sense to use one.
If you were to use a 2H, I would get a skorn with life steal and put a ruby in it. If you want to try maximus I'd use one with high crit damage and life steal (can't get a socket too).
I can tell this isn't the greatest build and the EDPS and survivability won't be as good as some more popular meteor builds. But if you really wanna try it, I hope my suggestions help.