What if Zul'jin's Voodoo Shuffle was a self cleanse or granted Unstoppable?

As title suggests, would it be too powerful for this talent to function as a self cleanse? Zul'jin's 13 talent tier is easily the most dull. Perhaps too strong if he could use it during a stun, but make it similar to Malthael's 13 talent. What do you guys think?