Altered Time Winder

A Device created by the Chrono Warden. Altered so it doesn't blow up time-related anomalies, and instead has some nifty uses.

The Altered Time Winder has One Charge that it regains daily at Dawn. It has two Variants that it can use, each taking up its daily Charge.

Freeze! : As an action, you target a single creature within 60 ft of you and force them to make a dexterity saving throw utilizing the user's spell save DC. On a success, nothing happens. On A fail, the Time Winder hits an enemy, putting them in Stasis. Enemies caught in stasis are incapacitated, can't move or speak, and can't perceive time or anything else. While in stasis, they cannot be damaged, moved, or otherwise interacted with at all. This effect lasts for as many turns as the user's proficiency halved (rounded down) and can be canceled early by the user as a reaction.

Run it Back! : Upon being reduced to zero HP, or otherwise knocked unconscious through other means, the user can use their reaction to return to their HP/Condition before the instance of the damage being dealt. If they were moved at all with the damage that knocked them, they will also return to their original position before the instance of damage happened. 
(Examples: Fall into Lava and be knocked unconscious from the damage. Teleport back to before you fell into lava and regain your hitpoints to before being knocked.)

Notes: Spellcaster