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Mana Cannons (Extended Art) [Dominaria United Commander]
| Set: | Dominaria United Commander |
| Type: | Enchantment |
| Rarity: | Rare |
| Cost: | 2R |
| Colors: | R |
Whenever you cast a multicolored spell, Mana Cannons deals X damage to any target, where X is the number of colors that spell is.