Token (トークン Tōkun) is a special marker created by card's ability during the game. They are introduced in Extra Pack 8: Nippon Ichi Software 3.
A Token possesses its own parameter like a regular card and are treated as such if placed on Square during gameplay. However, they are not an actual card and would simply cease to exist when they left the Square.
Unlike other card games, ability that create a Token simply refer to the created Token by its name and the parameter possessed by the Token are listed on a dedicated Token Marker (トークンマーカー Tōkun Mākā) instead. Therefore, it is mandatory to bring the dedicated Token Marker when using cards that able to create Token. The dedicated Token Marker are available either in sealed pack or as data download.
For the list of all available Token, see Category:Token.