Maybe a very high level cleric spell to support multiple parallel tanks (I feel like cleric has nothing going for them past 31). Soul Link: 20% of damage is redirected to nearby allies/other frontliners?
what the hell are you talking about level 31!? we dont have anything past learning heal!?
On a different note: i love the idea of rings and twin tankers, as well as the idea of actually having use for a shield (breath blocking!? brilliant!). Someones going to win a nobel prize for this one.