Your search for "Dragon Master Knight DPRP-EN012" revealed the following:
Dragon Master Knight - DPRP-EN012 - Rare - 1st Edition from Duelist Pack: Rivals of the Pharaoh 1st Edition, available at 401 Games Canada. Rarity: Rare Card Text:"Black Luster Soldier" + "Blue-Eyes Ultimate Dragon"Must be Fusion Summoned and cannot be...
Dragon Master Knight - DPKB-EN027 - Ultra Rare - 1st Edition from Duelist Pack: Kaiba 1st Edition, available at 401 Games Canada. Rarity: Ultra Rare Card Text:Black Luster Soldier + Blue-Eyes Ultimate Dragon // This monster cannot be Special Summoned...
Dragon Master Knight - RP02-EN097 - Secret Rare from Retro Pack 2, available at 401 Games Canada. Rarity: Secret Rare Card Text:"Black Luster Soldier" + "Blue-Eyes Ultimate Dragon"Must be Fusion Summoned and cannot be Special Summoned by other ways. This...
Dragon Master Knight (2020 Date Reprint) - RP02-EN097 - Secret Rare from Retro Pack 2 (2020 Date Reprint), available at 401 Games Canada. Rarity: Secret Rare Card Text:"Black Luster Soldier" + "Blue-Eyes Ultimate Dragon"This monster cannot be Special Summoned except...
Dragon Master Knight - DPKB-EN027 - Ultra Rare - Unlimited from Duelist Pack: Kaiba Unlimited, available at 401 Games Canada. Rarity: Ultra Rare Card Text:Black Luster Soldier + Blue-Eyes Ultimate Dragon // This monster cannot be Special Summoned except by...