Mathmech Equation - MYFI-EN010 - Secret Rare - 1st Edition Tweet Out of stock. $7.19 Wishlist Sell This Product Details Attribute: SPELL Card Number: MYFI-EN010 Card Text: Target 1 "Mathmech" monster in your GY Special Summon it and if you do it gains 1000 ATK until the end of this turn. You can only activate 1 "Mathmech Equation" per turn. Edition: 1st Name: Mathmech Equation Passcode: 14025912 Rarity: Secret Rare Set: Mystic Fighters Card Type: Normal Spell