Your search for "Dragon Master Knight DPKB-EN027" revealed the following:
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 - 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...