Does Wizkids have faq/errata or these rulings posted anywhere?
Yes. Everything should be here: http://win.wizkids.com/bb/viewforum.php?f=10
Because I've also got a question about the Human Fighter (Lesser Emerald Enclave). I'm confused wether his ability makes equipment cheaper or character dice with the equip icon cheaper.
It makes equipment dice cheaper. That one has also been clarified by Wizkids.