Could we consider making Bone Shield its own standalone ability? I have fond memories from Classic DK, spinning around with the Bone Shield, and having it as a separate skill would be fantastic!
They could easily do this by renaming the new skill Bone Armor. Maybe one day.
There is actually an ability that is used by Deathknight Cavalier in Naxxaramas which was called Bone Armor so there is some historic lore based providence for this.
However if they just gave us this version of that spell it would be hilarious…it’s basically a 1.2M Health Damage Absorb Bubble that lasts for 1 minute or until you take that much damage Highly unlikely. The issue is this talks about spellcasting that would need to change to something like immune to knockbacks, stuns, daze or CC type effects instead - Encases the caster in bone armor, absorbing 1200000 damage for 1 min. While the armor holds, spellcasting cannot be interrupted by Physical attacks.