Timekeeper Artificer

An artificer who specializes as a Timekeeper tinkers very precisely with cogs, gears, springs, and small mechanisms to create watches or clocks that they keep on their person. These timekeeping tools are magically imbued so as to never lose a second, and serve as powerful focuses for temporal magic latent in the universe. The artificer who creates such a timekeeping tool uses it to harness that temporal magic, gaining powerful advantages over enemies, giving formidable boons to allies, and rewinding away wounds and ailments by slightly modifying the flow of time.

This Artificer subclass was published in Time and Again, a DM's Guild product that features 14 time themed subclasses and edited by Erin Tierney.