make bosses freeze and stun immune on hitting health threshold immunity phases

I'm playing animate weapon for the second time, and bosses with immunity still have the issue of getting chain frozen so they take way longer to phase than they should

notably, dominius and daresso (during shaper) I have to either try to go to a corner so the weapons can stop hitting for long enough for the phase to happen, or unequip the skill/armour to remove the weapons.

alternatively, just make those bosses ignore not being able to move when phasing.

even a blanket unaffected by freeze would be better imo.