Elite Four

Elite Four,also known as the 4 Kings of the Dueling World are a group of elite duelist that are first introduced in Duel Masters Versus. The group consist of 4 members.
 * Lucifer - Light
 * Benchan - Water
 * Sasori - Nature
 * Kojiro - Darkness

Details
Each of the 4 duelist are the strongest in their respective civilizations. Even though there is no specification for Fire Civilization,Katta Kirifuda was assumed to be the strongest Fire duelist among the others. All 4 of them and Katta Kirifuda are participants in the Lucifer World Cup and the Duel Masters National Tournament.

All of them except for Sasori are fierce rivals of Katta.