Thank god it didnt go live or else they would've nerfed it like 2 hours after going live. So for those of us who dont play on PTR wll never know how it worked.
Deep Freeze now deals 1469 to 1741 damage to targets permanently immune to stuns.
"Frozen Core no longer causes your Ice Lance criticals to reduce the cast time of your next Frostbolt or Frostfire Bolt"