Tank shortage is going to get worse.

[Rassiel]

You're looking for Gladiator 22's Provoke, which apparently is "snap aggro" (Puts you at the top of the hate list), so use it when people steal hate.

Or so I've been told.

That "snap aggro" is only a slight boost in hate directed at the target. Provoke is great before 50, at 50 it's better then using Shield Lob or Tomahawk, only because of distance, otherwise it's not very good. I'd sooner spam damage abilities with additional effect: Increases Enmity, then use provoke which has a 40 second cooldown to save a healer mid fight x.x