Nayami over on Area 52 makes a good point in a recent thread on the official Mage forums about how magi must usually respec depending on which raid they're running:
"So I was talking with a few random raiders on my server, and I was informed that SSC and TK has a large amount of frost immunities?
I mean, I can accept the fact that fire does more damage than frost overall. That is the way it is and ever shall be. But I liked Frost because of the pvp viability and utility it brough [sic] outside of raid bosses and still managed to hold its own in terms of DPS. You weren't going to top any meters but you didnt suck. But Immunities? I dread to see how many things will be frost immune in Northrend."
Magi switching their spec depending on what they're raiding is nothing new -- back in the old days of Molten Core, you had to spec into Frost or Arcane. Other raid instances such as BWL, ZG and Naxx did allow Fire spec magi to raid, but it seems like raid mobs having immunity to certain schools of magic is a step in the wrong direction.
Nayami (and others in that thread) also point out something I hadn't thought about before -- what will Frost spec magi do when they get to Northrend? There are bound to be many mobs immune to Frost spells in the icy roof of the world. Is it fair to make a certain class respec this often in order to DPS efficiently? And when was the last time anyone saw a mob that was immune to Shadow spells? Warlocks and shadow priests certainly haven't found any, as far as I can tell.
Previously on Forum Post of the Day...