"Infernity" (インフェルニティ Inferuniti), is an archetype of DARK monsters used by Kalin Kessler in Yu-Gi-Oh! 5D's. They consist of monsters whose effects activate when a player has no cards in hand. In episodes 33 - 35 in the dub of Yu-Gi-Oh! 5D's, the archetype was referred to as "Infernalty". The first "Infernity" cards were released as promotional cards in Yu-Gi-Oh! 5D's Stardust Accelerator: "Infernity Archfiend", "Infernity Dwarf", and "Infernity Guardian". "Infernity Destroyer" was released in the Yu-Gi-Oh! 5D's Stardust Accelerator - World Championship 2009 Game Guide in Japan.