It was originally scheduled to be published as a 208-page book and released at Gen Con in 2005.
Cardhalla is a charity event that has been held at Gen Con since 1999.
A complete version of these rules, turned into a board game, was released at Gen Con 2007 on August 16.
The initial full-version was released in 2002 at Gen Con.
Tournaments for this format have taken place at Gen Con since 2001.
Gen Con is one of the largest annual gaming conventions in North America.
Gen Con has featured a number of events that raise money for a variety of charities.
Gen Con 2007 added a Trade Day to the schedule for the first time.
Special foiled versions of this card were given away at Gen Con.
In 2012, Gen Con saw over 41,000 unique attendees.