There's a discussion of Convictors (similar to the build you're describing) in this link:
Pally variants. In brief, these zealot-types are fine for trash, novel to play, and weak against bosses. Since Conviction doesn't benefit from +Skills much, this build depends only on gear (similar to a Thorns Barb). One oddity of the build is that you're never really sure how much damage you deal in combat, since most of your damage is from procs of undsiplayed skills. Life is recoverd via Redemption, pots, or Praying after battles.