Diamond Dude Turbo (DDT) was a popular Deck type, that took advantage of the effect of "Destiny HERO - Diamond Dude". Because costs are not necessary for using Spell Cards with the effect of "Diamond Dude", players gain card advantage with cards such as "Destiny Draw" and "Magical Stone Excavation". Currently this Deck is no longer viable, since most of its key cards (namely "Monster Gate", "Dimension Fusion", "Dark Magician of Chaos", "Stratos", and "Return from the Different Dimension") are either Limited or Forbidden.