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At the beginning of your upkeep, detain target creature an opponent controls. (Until your next turn, that creature can't attack or block and its activated abilities can't be activated.)
Abilities, attacks, weakness & resistance
Other cards from Return to Ravnica
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Martial Law (RTR-14) is a white rare enchantment from Return to Ravnica that introduces the detain mechanic. At the beginning of your upkeep it detains a target creature an opponent controls, preventing it from attacking, blocking, or activating activated abilities until your next turn. It serves as a recurring tempo control piece that can neutralize key blockers or attackers for a turn each upkeep.
Catalog pricing data as of 17 Apr 2026, 22:52
