Cryostasis

You encase a dying creature in a protective layer of enchanted ice, halting their descent toward death. The target is completely frozen in ice and remains Unconscious but stable. For the duration of the spell, they don't attempt recovery checks or take persistent damage. The creature can't act, speak, or perceive anything while in this state and doesn't need to breathe, eat food, or drink water to remain alive. You can Dismiss the spell to shatter the ice and release the target.

The ice block has AC 10, Hardness 10, and 60 Hit Points, and it's immune to critical hits and precision damage. While the ice remains unbroken, the encased creature can't take damage or be the target of spells. If the ice is destroyed, the spell ends immediately, though the creature is stabilized.