Disdainful Stroke⁣ - Guilds of Ravnica⁣ (Common)⁣ [37]

Disdainful Stroke is an instant from Guilds of Ravnica that counters target spells with a mana value of 4 or greater for just one blue mana. This card excels in controlling strategies, allowing you to disrupt your opponent's game plan by targeting their key threats while remaining low-cost. However, its limitation lies in its inability to counter spells with a mana value of less than 4, so it’s best used in a deck that can mitigate early aggression.