Bend or Break

The split-pile mechanic that Fact or Fiction made famous gets pointed at the manabase here, with one crucial wrinkle: every player is dividing their own lands, and an opponent decides which half of each pile burns. That makes it a symmetrical card with an asymmetrical payoff, because the player casting it has already weighed the math. The cruelty is in the partition you are forced to make of yourself: split your lands into two piles you can live without losing either, and you survive; split greedily, and you hand an opponent the knife. A mono-color manabase splits cleanly, since two even piles of identical-tapping lands cost nothing to draw up. A stretched multicolor base fractures into a real concession, because no even split keeps every color online. The surviving piles do not come through unscathed either: the lands you keep are tapped, so even the player who guesses and divides well loses a turn of mana to the round trip. It is resource denial dressed as a coin flip, and the flip favors whoever built the leaner, more redundant manabase rather than the greedier one. As a piece of design from the era that championed multicolor decks, it functions as a quiet counterweight: the more colors you reach for, the worse your piles look when someone makes you cut them in two.