General Grievous

Form V is a powerful style developed by Form III practitioners that preferred a more offensive angle. The defensive nature of Form III dangerously prolonged combat. The maxim "peace through superior firepower," encompasses the philosophy of Form V, also called the "Way of the Krayt Dragon." Anakin and Luke Skywalker are both practitioners of Form V.
Form V focuses a bit on having defensive skills, but channelling defence into offence. The example is commonly used that while Form III combatants effortlessly deflect laser bolts, Form V practitioners excel at redirecting the laser bolt toward the opponent.

IG-88, the second most feared bounty hunter in the galaxy.
Constructed in Halowan Laboratories this assassin droid was originally meant as a law enforcement tool, keeping the peace and capturing or killing dangerous criminals. IG-88 one of
five IG prototypes upon activation killed twenty-three staff members and escaped Holowan Labs. On his own and with the most sophisticated combat programs available he became a free-lance bounty hunter second only to Boba Fett.