This card is not a promo card, but rather a replacement card for the Pathfinding card in Dominion: Adventures to fix a minor art error on the original card.
As of May 9th, 2016, all Summon Promo Cards will also ship with this corrected Pathfinding card. If you placed an order for Summon prior to May 9th, this listing is for you. If you don't yet have the Summon Promo Card, you can find the listing for it here, and it will come with this Pathfinding fix card as well:
Due to publisher request - these will be limited to 1 card per customer