What does Ugin's Labyrinth do?
user
Imprint — When Ugin's Labyrinth enters, you may exile a colorless card with mana value 7 or greater from your hand.\n{T}: Add {C}. If a card is exiled with Ugin's Labyrinth, add {C}{C} instead.\n{T}: Return the exiled card to its owner's hand.
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