The Cave of Skulls

Planes live in the Planechase corner of the game, where the active player's shared deck of oversized cards rewrites the rules for every seat, and this one reframes what a full graveyard is worth to whoever's turn it is. Granting scavenge to every creature card in your yard is not a passive buff: it hands the active player a repeatable sorcery-speed engine that converts dead bodies into +1/+1 counters, sized by each creature's power, on whatever needs to grow. Because "your graveyard" is read from the active player's perspective, each player only mines their own yard on their own turn, so this is a rotating advantage rather than a communal pool. That the scavenge cost equals the printed mana cost prices the recursion honestly: expensive fatties are expensive to cash in, cheap fodder is cheap, and you exile the card either way, so the yard is a finite reserve, not a loop. The chaos side folds a random upside into the plane's presence: a chaos roll floods two 1/1 Warrior tokens onto the board to widen it. They pressure the game while they live, but they leave no fuel behind, since tokens cease to exist on their way to the graveyard and are never creature cards to be scavenged. The two halves interlock into a grindy, counter-piling posture that rewards a graveyard already stocked with high-power creatures waiting to be paid for.