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Roilmage's Trick [Battle for Zendikar]
| Set: | Battle for Zendikar |
| Type: | Instant |
| Cost: | {3}{U} |
Converge — Creatures your opponents control get -X/-0 until end of turn, where X is the number of colors of mana spent to cast this spell.
Draw a card.
Weather on Zendikar is unpredictable—unless you're the one telling it what to do.
