March of the Machine Commander · #200
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Each player puts a vow counter on a creature they control and sacrifices the rest. Each of those creatures can't attack you or planeswalkers you control for as long as it has a vow counter on it.
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Promise of Loyalty (MOC-200) is a white sorcery. When cast, each player puts a vow counter on a creature they control and sacrifices their other creatures, and any creature with a vow counter can't attack you or planeswalkers you control while the counter remains. Debuted in the March of the Machine Commander expansion.
Catalog pricing data as of 12 Apr 2026, 21:39
