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Puca's Mischief [Shadowmoor]
| Set: | Shadowmoor |
| Type: | Enchantment |
| Rarity: | Rare |
| Cost: | 3U |
| Colors: | U |
At the beginning of your upkeep, you may exchange control of target nonland permanent you control and target nonland permanent an opponent controls with an equal or lesser converted mana cost.