![Mana Leak [Modern Masters 2015]](https://cdn.shopify.com/s/files/1/0451/3388/9694/files/26ed602c-bec6-518a-935d-463c2fc53680.jpg?v=1720132554)
Mana Leak [Modern Masters 2015]
| Set: | Modern Masters 2015 |
| 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.