Stronghold Discipline

Commander is where Stronghold Discipline earns its slot — three opponents means the drain triggers three separate times, turning even a modest board of ten creatures into 30 life lost across the table. In Legacy, Modern, and Vintage it's legal but largely invisible; faster, more redundant life-drain packages and combo lines make a four-mana sorcery too slow to compete. Pauper is the one competitive format worth noting: black token strategies exist at common, and Stronghold Discipline can close a game that has stalled, though it competes with cheaper finishers. Oathbreaker mirrors Commander's logic at smaller scale — fewer opponents, but the drain still scales with your creature count and can steal a win out of nowhere.