Talk:Miss Fortune/@comment-1120494-20151114072609/@comment-5219385-20151121000717

It scales with 20% of your bonus critical damage. Which means IE adds 10% dmg to your ult (if you have 100% critical chance), this applies to runes as well. Also, I think Q get bonus dmg from IE, but it's probably equals to 50% of your bonus critical damage (which mean 25% bonus dmg with IE)