[quote=@ERode]
Right now, no. Feels like the sorta thing where you just end up turning individuals into walking magical nuclear bombs, and HP is too nebulous a concept to be used as part of one's Divine Protection. Would it be like, if you get stabbed, the knife only goes 1/10th the way because everyone else gets 1/10th stabbed?

Later, maybe, but will have to seeeeeee.
[/quote]

I was thinking they would just have rapid healing that drains their collective lifeforce, but I hadn't thought about how it could be exploited offensively. How about "Followers can sense when fellow followers are harmed and know their location"? Like an Eternal Vigilance or Neighborhood Watch sort of deal, which I think is more Law than Order.