I play Hpriest/destro in arena, my partner and I are debating which would be the best THIRD class the bring.
We believe the combination of Gheal/Bolt already generates enough "kick pressure," without the need for a third big cast (gpyro from a fire mage). Rather it would be better to have a frost mage (virtually freecasting) to ensure higher uptime against the locks targets, and provide a decent measure of peeling against melee cleaves on me (healer) by taking advantage of the RARELY used double nova talent (ice ward)