Null Brooch
A colorless counterspell wears its cost on its face: emptying your hand to stop a noncreature spell is a brutal trade, and the design knows it. The activation looks like four mana plus two more, but the real price is information and resources. You are committing to a near-empty grip, which means the card rewards a deck that wants to be hellbent anyway or one that can dump its hand fast enough that discarding it costs nothing. That conditional is the entire design discipline here: the counterspell is colorless and repeatable, two properties no instant ever gets to combine without a heavy tax, so the tax lives in the discard clause instead of the color pie. The targeting is narrow on purpose (noncreature spells only), keeping it from being a universal answer while still walling off the things a noncreature-heavy control mirror cares about: removal, sweepers, the win condition on the stack. What it represents is a recurring artifact-set experiment, giving colors outside blue access to permission at a structural cost rather than a mana cost. The repeatability is the hook and the hellbent requirement is the leash; loosen either and the card breaks, which is exactly why it has stayed a curiosity rather than a staple.
