The Promise of Loyalty Sorcery (#319) from the 2026 Magic: The Gathering Marvel Super Heroes Commander subset offers a unique strategic interaction for white mana players.
Promise of Loyalty
2026 • Magic: The Gathering • Marvel Super Heroes • Commander
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$0.80
Description
As card number 319, this white mana spell requires a mana cost of {4}{W} and carries a mana value of 5. Designed by Sveta Pikul, the card serves as a powerful control element within the Commander format, challenging players to make difficult decisions regarding their board state. The card’s mechanics revolve around the concept of shared vulnerability. When played, each participant in the game must place a vow counter on one creature they control and sacrifice all others. This creates a temporary truce where the remaining creatures cannot attack you or the planeswalkers you control for as long as the vow counter remains. This effect can dramatically shift the momentum of a multiplayer game, forcing opponents to prioritize their most valuable units and leaving the rest vulnerable to future removal. Collectors of Magic: The Gathering trading card game cards appreciate the Promise of Loyalty for its thematic resonance with the Marvel Super Heroes set. The flavor text, referencing the birth of the Fantastic Four, ties the mechanical effect to the broader narrative of the expansion. As a Rare card, it holds a distinct place in the catalog, appealing to those who enjoy complex, high-impact spells that define the Commander experience. The card’s design and rules text reflect the high production values characteristic of modern Magic releases, making it a desirable addition for both competitive players and set collectors. Its ability to interact with all players simultaneously makes it a standout piece in any white mana deck looking to stabilize against overwhelming forces.
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Card Details
The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.
Catalog Profile
The core identity of the card within the set.
Year
2026
Brand
Magic: The Gathering
Series
Marvel Super Heroes
Subset
Commander
Subset Type
Subset
Card Number
#319
Featured Subject
The subject, team, league, and sport context tied to this card.
Featured
Promise of Loyalty
Game
Magic: The Gathering
TCG Attributes
Rarity, print treatment, and game-specific stats for this card.
Rare
Sveta Pikul
Card Stock
English
{4}{W}
Sorcery
W
Card Text
Abilities, attacks, oracle text, and flavor text printed on the card.
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.
And so was born the Fantastic Four! And from that moment on, the world would never again be the same!















