Tournament

A Tournament is an event where duelists of varying skill and ability gather, to determine who ranks the best amongst them. There are two primary levels of Tournaments:

• Constructed Deck Tournament
• Sealed Pack Tournament

And these utilise one of these two formats:

• Traditional Format
• Advanced Format

And can appear on the following levels:

• Duelist League
• Hobby League
• National Tournament
• Regional Tournaments
• Fortune Tour Championship
• Shonen Jump Championship
• World Championship

Official tournaments were often assisted by a computer running MANTIS, owned by UDE. KDE's tournament software is COSSY.