I just finished adventure 4, and have yet to encounter a single card that cared about her fire trait. Has anyone who's already completed adventure 5 run into anything? I'm getting tempted to just retcon her into having light armor proficiency; even if 5 and 6 add multiple monsters that are vulnerable to fire, with so many other non-basic non-elites that couldn't care less, I can't see this power feat being worthwhile.