Monthly Duel (月刊デュエル, Gekkan Dyueru) is a magazine in Yu-Gi-Oh! GX and Yu-Gi-Oh! 5D's.
Syrus Truesdale read an article about the Pro League Duelist Aster Phoenix in Monthly Duel.
Team Ragnarok were reading this on an airplane. Just before a falsification of history occurred Team Ragnarok were on the cover. After the falsification, Team New World were on the cover.
Issue of Monthly Duel, featuring Aster Phoenix
Issue of Monthly Duel, featuring Team Ragnarok.
The same issue after the falsification of history, now featuring Team New World.