This card was released in the English Undaunted expansion, originating from the Japanese Reviving Legends expansion. In Japan, a Cosmos Holofoil L-P Promotional print of this card was awarded as a prize to participants of the Reviving Legends Release Commemoration events held in January 2010. This print has the Pokémon Card Game LEGEND logo in the top right of the illustration box and the Reviving Legends logo on the bottom left.
This card and its evolution are the only cards with a credited director. Both cards were directed by Shinji Higuchi.
The initial concept art for this card was revealed in an interview with Shinji Higuchi and Tsunekazu Ishihara published by ASCII Magazine on November 30, 2009.[1] The concept art was illustrated by Higuchi before being recreated in a 3DCG style by Wataru Kawahara.