Disdainful Stroke

Instant

Counter target spell with mana value 4 or greater.

2018-10-05:
If a spell has {X} in its mana cost, include the value chosen for that X when determining the mana value of that spell.
2021-02-05:
If a spell has {X} in its mana cost, use the value chosen for X when determining the spell's mana value.
2021-03-19:
If a spell has {X} in its mana cost, use the value chosen for that X to determine the mana value of that spell.
2021-03-19:
A face-down spell has mana value 0 and can't be targeted by Disdainful Stroke.