Edward John Dent's Chronometer

Origin
In 1834, the Palace of Westminster, the home of Parliment, was destroyed by a heavy fire. Though efforts were made to find a new location for both houses of Parliment, tradition proved to be too heavy to ignore, and so they pushed for a new building to be built on top of the old one. Big Ben, the infamous northern clock tower, had it's clockwork built by Edward John Dent, a clockmaker who was famous for his precise chronomatic creations. Dent became bent, as it were, on the idea of success and being the best clock maker in the world, and won the illustrious honor of being the clock maker of the inner workings of Big Ben. Unfortunately, however, he died before the work could be completed, leaving his adopted stepson to finish the work - with Dent's personal Chronometer.

Effects
The clock is so accurately made that it aligns the body that is holding it with it's own personal ticks, a consistency which allows incredible feats of the body and mind. The user would find themselves able to accomplish nearly any task with these advances, but the constant ticks make the user go mad, and usually mad for power because of their perceived superiority. This fate unfortunately befell another Big Ben builder, the designer of the clock tower, Augustus Pugin, who swiped the chronometer from Dent's stepson.