*In pivotal scenes, Chancellor Palpatine proves a worthy opponent when the Jedi try to arrest him, while Obi-Wan Kenobi battles the deadly, droid warrior General Grievous. The droid commander's wheezing voice has led many people to view him as a precursor to Darth Vader, another mechanized hybrid with audible breathing difficulties. Front: Art of the Jedi's arrival at Palpatine's office by Ryan Church. Back: A concept rendering of the multi-armed General Grievous by Derek Thompson. *Source: Back of Card.