I think it might be wise to have a FAQ for each section.
Power Effects FAQ
Item Effects FAQ
Each on a separate tab maybe? Or at least an easily seen link on the power generator and item generator as well as on the specialty search. I know it’ll be a lot of work to get an in depth FAQ written for each and every specialty tree, item effect and power effect but I believe it will be beneficial to give a blurb as to how they actually work gameplay terms.