I was looking around on the google play app store today and found this app called Baldur's Gate Reference, and since I remembered that I thought people were saying BG uses the same rules, it would be good for Icewind Dale.

I tried it out and it looks pretty good. Just fyi incase you think that might come in handy. Seems decent to me.

Just remember that the rules aren't completely consistent between games. Still, should be accurate in the majority of cases.