Hmm...I wonder what kind of impact Mist Body will have on the game? I mean, being able to make any of your monsters invincible in battle could be very useful!
Run it in a Chimeratech OTK. Equip it to any ATK position monster on the foe's field and that's a SERIOUS overkill. (Don't even have to bother thinking about clearing the foe's monsters for direct attack)