Sister of Silence

A conditional counterspell that leaves a permanent behind. The play pattern is exactly the counterspell's: hold up five mana, pass, and flash it in when the opponent commits to something worth stopping. What differs is the residue and the reach. A resolved Counterspell trades one card for one and heads to the graveyard; this answers the target while a 3/3 stays behind, so the interaction doubles as a threat and, more importantly, becomes reusable by any flicker or recursion the deck can supply. The target line is the wrinkle. It cannot touch creature, artifact, enchantment, or planeswalker spells, so it is no all-purpose brick wall, but within its lane it reaches further than most stack interaction: not just instants and sorceries but activated and triggered abilities. Counterspell itself cannot answer an ability; this can, which lets it break up a storm chain, fizzle a fetch-land activation, or shut off a combo that lives on the stack rather than in a spell. The cost of routing a counter through a creature is exposure. The interruption is an enters trigger, and once that trigger is on the stack it exists independently of the body, so bouncing or killing the 3/3 in response does not save the countered target. The opposite vulnerability applies too: an opponent can respond to the trigger itself. Turning a counter into a blinkable object is the trade, and the recursion upside is what pays for the five mana.