This is a mysterious artifact that can seem to change the timeline. As a action, you can unzip it, and pull out a film strip. As a bonus action, you can rip a piece of the film strip and replace it with a new one, and it will alter the timeline. When you add the new piece, something will happen that is on the film strip. If you replace it with a blank film strip, the timeline that is now blank, will be deleted, and you will be put where you were at the last space before blank.

Notes: Before attunement, weighs 5lbs. after attunement, weighs 0lbs., This Artifact seems to meld into your arm when you attune it, disappearing, and your arm gains a zipper, about 1 foot long., Utility, transmutation