Ugin's Labyrinth [Modern Horizons 3] Grist All they need to do

All they need to do is start

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Set: Outlaws of Thunder Junction: The Big Score Type: Artifact Rarity: Mythic Cost: {2}{G} Whenever you cast a spell that's one or more colors

Ugin's Labyrinth [Modern Horizons 3] Grist All they need to doSet: Modern Horizons 3 Type: Land Rarity: Mythic Imprint When Ugin's Labyrinth enters the battlefield, you may exile a colorless card with mana value 7 or greater from your hand. T: Add C. If a card is exiled with Ugin's Labyrinth, add CC instead. T: Return the exiled card to its owner's hand.