1. Give Divine Shield the ability to be recast during it's duration, so that you can keep the Dodge AC up for a long duration if you keep track of it.. the 1 round you are w/o it when you need to recast it can be devastating.. and I don't feel it should be like that.
2. Input a Feat that increases it's duration (like epic divine might).. there isn't really any point to double the dodge ac because of the +20 dodge cap, since the dodge AC shouldn't be doubled perhaps the Epic Divine Shield should give something else along with the longer duration.. like a feat that works under the duration (like evasion during whirlwind rage).. something that fits the concept.
I prefer the first one, most spells renews the duration when cast, like concealment, or sirine's grace which I also rely on in a hard battle.





