The two prints are among numerous cards to feature illustrations that form a narrative. In the Chilling Reign print, a Blitzle is drifting on an ice block along the east coast of the Crown Tundra. In the SWSH Promotional print, the ice block has reduced in size as the day has gone on and has carried the Blitzle almost to shore.
Based on the release schedules of previous Pokémon Card Gym Promo Card Packs, it is likely the Japanese S-P Promotional print would have been available alongside the dual Silver Lance and Jet-Black Spirit expansion on April 23, 2021. However, due to the release proximity of the previous Promo Card Pack, which was also delayed due to COVID-19 restrictions, and the state of emergency that was subsequently imposed in some Japanese prefectures from April 29, this print did not become available until July. This delay led to the first official release of this print appearing as a Traditional Chinese-language S-P Promotional card in May 2021.