Undercity Sewers (Borderless) (20) (PZA)
Non-Foil - NM
Not Buying
![Counterbalance [The List]](https://cdn.shopify.com/s/files/1/0267/9501/6251/files/1832cba6-f607-44ac-b0d1-94b3b70ada92.png?v=1748056539)
Counterbalance [The List]
| Set: | The List |
| Type: | Enchantment |
| Rarity: | Uncommon |
| Cost: | UU |
| Colors: | U |
Whenever an opponent plays a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same converted mana cost as the revealed card.