Falsification of history

Falsification of history is an ability held by the Three Emperors of Yliaster, which allows them to change the course of history.

Process
When history is about to falsified a shockwave is emitted from the sky. Wherever the shockwave passes becomes affected. Changes are made instantly and people's recollection of the previous timeline is erased.

Some people are unaffected. Although they go to the altered timeline, they still have memory of the previous one. The emperors being the ones who cast the falsification are unaffected. The Crimson Dragon protects the Signers, by emitting a protective bubble from their Marks of the Dragon. Team Ragnarok are protected Polar Gods, whose card forms they possess.

Changes made
After Yusei, Sherry and Bruno gained knowledge of Yliaster through Momentum Express, the emperors decided that it was necessary to make some changes. These included:
 * Momentum Express was never built.
 * The emperors are entered in the World Riding Duel Grand Prix as Team New World.
 * Sherry and Mizoguchi's team are not entered in the World Riding Duel Grand Prix.