As per the title: I want a resist frost ability (to be used in a perk, probably) that conveys 10% resistance below a certain rank, 30% below another, and 50% over that threshold.

So I thought I'd create an ability and then add the same abResistFrost effect three times, each wth different getFactionRank conditions. That way only one should fire. The trouble is, when I look at the effect in the magic menu, ALL the effects are listed: +10, +30 and +50. So apparently all the conditions evaluate as true. Or none of them are being evaluated.

How to do this?

A couple of other details:

The faction in question, BTW, is being used to simulate an actor value and runs from 0-100 in rank. It's fairly volatile. (It's also part of the API for another mod, so I have to use faction rank).

I added in a mod carry weight effect and that works, so I know the basic ability is set up right. I'm not sure the frost resistance is working though.

I'm pretty sure this is just an error with how the spell effects display. I recall hitting on something similar in some of my own Mods. Best way to know for sure is to add your Ability, open the console and type : Player.GetAV FrostResist (Or possibly ResistFrost -- Can't remember which way around it is).

Easiest solution : Three abilities.

Just remember, that if an Ability on the Player has NO active effects, it will CTD when you open the Magic Menu, so you'll need a 'Hide in UI' do-nothing effect on each, as well.