If these Fairy rumors are true (I've never looked into them) I'll be perfectly fine with it if it's used to help balance out the type chart, like with these suggestions.
Reigning in Dragon and Fighting a bit, while boosting the offensive capabilities of Poison, would be a welcome change.
It could also help if Ice resists it (doesn't really make sense to me but Ice needs something) and there is folklore of fairies hating iron so being weak to Steel wouldn't be too bad. However since Steel is so useful defensively I'm not bothered by it being weak offensively.
You are the universe Expressing itself as a human, for a little while