Court of Ardenvale
The monarchy and graveyard recursion are usually two different white decks, and this staples them together with a feedback loop that pays out precisely when the crown holds. Off the throne, the upkeep trigger is a slow value engine: one cheap permanent back to hand each turn, the kind of grind that keeps a control shell topped up. Hold the monarchy, though, and the same trigger reanimates instead, dropping a small permanent straight onto the battlefield every upkeep for free. That conditional is the whole engine: the monarch draws a card each end step, so the incentive to defend the crown is already baked in, and the Court sweetens it by turning every attack the opponent fails to land into another recurred body. The recursion caps out at permanents costing three or less, which is what keeps it from spiraling: it targets the dorks, the sacrifice fodder, the utility enchantments and small hatebears, not the finishers, so the loop rebuilds a board rather than cheating out a bomb. It rewards a deck built wide and cheap, one that can protect the monarchy with bodies while feeding the graveyard those same bodies expect to leave. Losing the crown does not shut the Court off; it just downshifts it back to card advantage, which is why the enchantment keeps earning even when the race for the throne goes sideways.

