Geth's Grimoire

Discard, in most decks, is a one-sided transaction: the opponent loses a card, you spend one. This turns that math sideways. Pair it with a Megrim-style symmetry and every card stripped from an opponent's hand refills yours, converting attrition into a draw engine that runs as long as the discard outlets keep firing. The design is built around a specific deckbuilding premise that black has flirted with for years: the discard-matters shell, where Hymn to Tourach, Mind Twist, and persistent edicts on the opponent's hand are meant to be a win condition rather than disruption. The trouble is the trigger only reads "an opponent discards a card," so it does nothing on a turn you fail to make them discard, and it asks you to commit four mana to an artifact that produces zero board impact and zero pressure unless the cards around it cooperate. That conditionality is exactly why it has stayed a build-around curio rather than a staple: it rewards a deck constructed entirely to feed it and punishes one that treats it as a value piece bolted on for upside. The art and the Book typing frame it as Geth's catalogue of stolen knowledge, which is the right flavor for a card that profits from someone else's losses.