Utility is Dead (or is it?)

We've all heard of "bring the player, not the class" and are getting used to the fact that virtually every class and spec in WoW brings some kind of buff to the raid. Not all MMOs handle raid utility this way and in fact WoW didn't always either. I distinctly remember the time where you absolutely wanted a shadow priest or two in the raid for their mana regeneration, even though their DPS was sub-par. Survival hunters were only taken for their debuff and shamans switched groups mid-fight do chain Heroism on a DPS group.