lol yea, i dont pvp much anymore because of all the hate, and trying to get your toons all in the same group is retarded hard, not worth it for me imo

As for mana, well theres a few skills in the holy tree that let you heal and get mana back or similar mechanics. Just because your strat of Holy nova and smite only works well doesn't mean you cant use the other spells as well i think it will be fine given your shadowfiend(which i think is still there) and all the talents, should make for a fun group in cata