Mind Funeral

Mill's variance dial cranked all the way up. Where Glimpse the Unthinkable strips a flat ten cards for two mana, this gambles on the shape of an opponent's deck instead of paying a fixed price: the total buried is whatever sits between the top of the library and the fourth land revealed. The math runs on land density. A deck packed with lands hits its fourth quickly and loses only a thin sliver; a lean, spell-heavy library digs deep before surfacing four lands, and that is where the spell goes off, occasionally dragging a third of a deck into the graveyard on one resolution. The swing is the entire design. It rewards casting into low-land manabases and does almost nothing against the land-flooded, which inverts the usual mill assumption that a tight, efficient deck is the harder target. The reveal clause is the quiet second effect: it turns a private library into open information mid-resolution, feeding graveyard strategies on both sides of the table and handing you a free scout of what the opponent is sitting on. As milling math it has never been the dependable line; the floor is genuinely embarrassing when you rip into a cluster of lands. But the ceiling has no peer at three mana. No other spell in these colors can take a third of a library at once, and none asks you to read the curve of the deck across the table the way this one does before deciding it was worth the cast.