Updated 2015-08-31 (Note Date! This has been revised and updated after a playtest that exposed a broken mechanic where Movement can be added to strength for melee attacks. This has been fixed.)
A ‘Speedster’ is any super powered character that gets around by running very fast. There are plenty of examples of this in comics, from any of the Flash family to Quicksilver, and many others. However, having a few levels of Speedster can be useful for other character concepts, too.
Download the complete Power-Set here: Power-Speedster