Magic: The Gathering · Commander: Marvel Super Heroes

Promise of Loyalty

French name: Promesse de fidélité (Extended Art)

319RareExtended Art

Promise of Loyalty (Extended Art) (Commander: Marvel Super Heroes 319) has a market price of US$0.99 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$0.99Low US$0.35

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: Sveta Pikul

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 planeswalkers you control for as long as it has a vow counter on it.

Flavour text

And so was born the Fantastic Four! And from that moment on, the world would never again be the same!

About this card

Promise of Loyalty (Extended Art) is card 319 in Commander: Marvel Super Heroes, a Magic: The Gathering set released Jun 26, 2026. Rarity: Rare. Illustrated by Sveta Pikul. Reference market price on Nov 9, 2026: US$0.99. Over the last 30 days, the Normal price went up 6.5%. Source: TCGplayer market data via tcgcsv.com, updated daily. A reference price is not an offer.