Mental Discipline - Foil Tweet Out of stock. $2.21 Wishlist Sell This Product Details Card Number: 37/144 Card Type: Enchantment Rarity: C Card Text: 1U, Discard a card Draw a card. Color: Blue Finish: Foil Name: Mental Discipline Set Name: Urza's Destiny Artist: Edward P. Beard, Jr. Cost: 1UU