Baldnbrash:
Armor at 24 instead of 34 would necessarily be game-breaking if it would allow them to last the majority of a 4-minute fight(basing the time off my guild’s longest kill in BFD being 4:16 on 6th boss) without going completely OOM after using mana pots & Evocation. I also think vanilla PvP usually is so quick to a a finish that 30% mana regen and 5 resistance to all spell schools would be negligible in most cases.
(For full disclosure, I have not been in BFD yet, won’t go in until tomorrow night, so I haven’t seen how mana is in there.
You don’t need to go into BFD to see what mana is like. Every caster in the game is OOM in under 20 seconds. You can test that while doing an elite quest.