Your search for "The Fifteenth Doctor 1584" revealed the following:
The Fifteenth Doctor - Doctor Who: Regeneration (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Kieran Yanner Card Text: Doctor Who: RegenerationWhen The Fifteenth Doctor enters the battlefield or attacks, mill three cards....
The Fifteenth Doctor - Doctor Who: Regeneration (Foil) (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Kieran Yanner Card Text: Doctor Who: RegenerationWhen The Fifteenth Doctor enters the battlefield or attacks, mill three...