![Counterbalance (2066) [Secret Lair Drop Series]](https://cdn.shopify.com/s/files/1/0282/8700/8802/files/cb445097-221a-5dae-8b40-12fbdc78a4ae.png?v=1773677699)
Counterbalance (2066) [Secret Lair Drop Series]
| Set: | Secret Lair Drop Series |
| Type: | Enchantment |
| Rarity: | Rare |
| Cost: | UU |
Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same mana value as the revealed card.