Bu Zombies was a standard deck from Scars of Mirrodin block and Innistrad block that used Geralf's Messenger, Gravecrawler, Diregraf Captain and various other zombies. It was an aggro deck that was extremely good at draining life from opponents and recurring creatures.
Richard Parker piloted this deck to 1st place at GP Lille 2012:
Bu Zombies - Richard Parker - 1st place, GP Lille 2012