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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.
Abilities, attacks, weakness & resistance
Other cards from Commander 2021
Promise of Loyalty (C21-21) is a white sorcery from Commander 2021 that places a vow counter on a creature each player controls and forces them to sacrifice their other creatures. The creature with the vow counter cannot attack you or planeswalkers you control for as long as it has that counter, creating a lasting protective effect. The spell affects all players symmetrically and remembers the creature even if control changes, so it can lock down a particular threatening permanent across turns.
Catalog pricing data as of 26 Apr 2026, 04:44
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