Disdainful Stroke

The price of a hard counter has always been the question, and this one answers it by selling certainty about what you can catch in exchange for never catching the cheap stuff. Two mana that says no to anything worth four or more is one of the tightest deals on the conditional-counterspell ledger: it whiffs entirely against early plays, removal, and most of the interaction that defines the opening turns, but the spells it cannot stop are rarely the ones that end games. The threshold is the whole bargain. Where Mana Leak or Negate ask you to pay for a window or a category, this one draws its line by cost, which means it sharpens as the game goes long and the spells on the stack get heavier: the bomb, the planeswalker, the haymaker the opponent has been holding for the turn they can afford it. It does nothing about the small spell that resolves under it, and that asymmetry is exactly what makes it cheap. As a piece of design it sits in a long line of cards that trade universality for rate, the way Spell Pierce trades for noncreature spells and Essence Scatter trades for creatures; this one's axis is mana value, the cleanest possible carve, and the reason it keeps getting reprinted is that the line it draws is easy to understand and hard to play around once you are committed to the big-ticket plays the format is built to reward.