Is Diana able to use her investigator card fast action special ability when playing "Defiance" (skill card) if none of the Defiance card's listed chaos tokens (skull, cultist, tentacle, elder thing) is actually drawn? That is, would those tokens listed be considered to be "ignored" if they weren't actually drawn from the chaos bag? Or would you actually have to draw one such chaos token in order to earn her investigator card's benefit? Thank you!

If the token is not drawn, it can't be ignored.