Champion

"Champion's", known as "King" or "Ruler" (王者 Ōja) in Japan, is an archetype of cards used by Jack Atlas in the Yu-Gi-Oh! 5D's manga. All of them are members of the "King" series, but do not support them.

They support cards with "王者" in their Japanese names. "King" monsters have only "王" in their Japanese names, so they do not qualify for support. "King" and "Ruler" are viable translations for both, though. Other than the cards Jack used, the only other card that qualifies for support from them is "Champion's Vigilance".