Lots of damage, very quickly, and chances to benefit from exhaust synergies like Feel No Pain. Goes especially well with ways to fill up your hand like Battle Trance or Offering. It's also an excellent target for some game-winning enchants, like 8 Vigor or +50% damage. Taking it most of the time is the right idea, but do be careful in decks which are dependent on particular cards and will regret playing it when they draw it.
