Magic: The Gathering · Commander: March of the Machine

Promise of Loyalty

French name: Promesse de fidélité

200Rare

Promise of Loyalty (Commander: March of the Machine 200) has a market price of US$0.36 as of Nov 9, 2026.

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Price guide

The market price on TCGplayer, in US dollars: a guide, not an offer.

Market price

NormalUS$0.36Low US$0.18

As of Nov 9, 2026 · The market price is TCGplayer’s, in US dollars. It is a guide, not an offer.

Card details

Type: Sorcery
Mana cost: {4}{W}
Artist: Sara Winters

Card text

Each player puts a vow counter on a creature they control and sacrifices the rest. Each of those creatures can't attack you or a planeswalker you control for as long as it has a vow counter on it.

Flavour text

"It's us against the world. Forever."

About this card

Promise of Loyalty is card 200 in Commander: March of the Machine, a Magic: The Gathering set released Apr 21, 2023. Rarity: Rare. Illustrated by Sara Winters. Reference market price on Nov 9, 2026: US$0.36. Over the last 30 days, the Normal price went down 5.3%. Source: TCGplayer market data via tcgcsv.com, updated daily. A reference price is not an offer.