Ricochet Trap
For one red mana, after an opponent has tapped out for a counterspell or a single-target removal piece, you reassign that spell to a target of your own choosing. That is the deal, and the deal is the card: at this is dead weight you would never cast, but the alternative cost enabled by an opponent's blue spell drops it to
, the cheapest answer either player will throw onto the stack all game. The whole design is a wager on the matchup arriving: print a four-mana redirect nobody wants at the full price, then offer a discount so steep it borders on free, contingent on the opponent having shown you blue this turn. The sharpest line is against a Counterspell aimed at your own spell. You cannot bounce it back onto itself (a spell cannot target itself), so you change its target to this instant, which has nothing to counter and fizzles harmlessly. The "spell with a single target" clause is the precise edge: it slips past anything hitting multiple objects but lands cleanly on the one-target spells blue leans on most. Strip away the price gate and you are left with Redirect: identical instant-speed window, nearly identical stack interaction save for that single-target restriction, a rate that swings from unplayable to nearly free based entirely on whether the opponent has tipped their hand.

