Utter wrote:
What I think (this is only based on experience playing her, no .txts or pure tests), is that Wake of Fire and ofc Fire Blast indeed get the -enemy res while the Inferno trap won't get it.
I can't speak for WoI (as I never once used it outside of novelty), but I've had the same experience with Fire Blast and WoF. I don't imagine I'd be doing much killing if my -res didn't work at all. There is absolutely no reason Fireblast would not benefit from -res, as far as why WoF does or WoI doesn't I can't tell you. Possibly a scripting oversight when it came to WoI, who knows.
A lot of people who give out information have never really played the build in question, and that's where bad information gets spread out across the game. Theorycrafting, while useful in some aspects, normally doesn't provide a true outlook on the performance of a build or certain aspects of it.