Shell Guardian - Savan is a character appearing in some video games. He first appears in Yu-Gi-Oh! World Championship 2008 in the World of Sunlight, guarding the door to the World of Civilization. The player must defeat him 3 times, each time with a different Deck building condition, to unlock the World of Civilization. In Yu-Gi-Oh! 5D's World Championship 2009: Stardust Accelerator, Savan appears as a downloadable Ghost Duelist for October 2009.