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!
$0.23
TCGplayer & Cardmarket market price
Card data via Scryfall. Paper market figures use TCGplayer market price and Cardmarket values that Scryfall syncs from affiliates. View on Scryfall · How Scryfall prices work . Prices refresh about every 24 hours — useful estimates, not a live storefront and not an in-stock offer. Tappr is not the seller. Page checked 2026-11-02 05:48 UTC.
Where to buy
Identify the printing
Scan Promise of Loyalty with Tappr to match the exact printing. Figures above are Scryfall estimates, not a listing from Tappr.
Format legality
More from Marvel Super Heroes Commander
Scan Promise of Loyalty and more
Get Tappr free. Identify any Magic: The Gathering card and see what it is worth in seconds.
No credit card. No signup. Just scan.
Scan to download
Point your phone camera at a code
- Free on iOS & Android
- No account required