Ugin's Mastery is a rare Enchantment card from Magic: The Gathering (Commander Masters, CMM). Current market price: $0.87.
Rare
Commander Masters (CMM)
{4}
Mana Value
4
Card Text
Whenever you cast a colorless creature spell, manifest the top card of your library. (Put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)
Whenever you attack with creatures with total power 6 or greater, you may turn a face-down creature you control face up.
