C7-8GO was the jet black protocol droid of Sith Lord Galaxy Master. He took Jedi Berl Mall and his Padawan, Rip Tide, into a trap on Galaxy's ship. Eight droids attacked but were defeated. A charge then activated inside C7, killing Berl and wounding Rip. Rip remembered this on his quest to kill Galaxy. Galaxy's clone would later mention him over 5000 years later.