![Mana Leak [Magic 2012]](https://cdn.shopify.com/s/files/1/0451/3388/9694/files/70eca9c7-e892-5e83-a201-b3533d7dad6d.jpg?v=1720202594)
Mana Leak [Magic 2012]
| Set: | Magic 2012 |
| Type: | Instant |
| Rarity: | Common |
| Cost: | 1U |
| Colors: | U |
Counter target spell unless its controller pays {3}.
The fatal flaw in every plan is the assumption that you know more than your enemy.