Your search for "Ultra Polymerization MACR-EN052" revealed the following:
Ultra Polymerization - MACR-EN052 - Secret Rare - Unlimited from Maximum Crisis Unlimited, available at 401 Games Canada. Rarity: Secret Rare Card Text:Pay 2000 LP; Fusion Summon 1 Fusion Monster from your Extra Deck, using 2 monsters you control as...
Ultra Polymerization - MACR-EN052 - Secret Rare - 1st Edition from Maximum Crisis 1st Edition, available at 401 Games Canada. Rarity: Secret Rare Card Text:Pay 2000 LP; Fusion Summon 1 Fusion Monster from your Extra Deck, using 2 monsters you...