Promise of Loyalty 

Sorcery
Oracle text (EN)
Sorcery
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.
Printing details
- Set
- C21 · 21
- Rarity
- Rare
- Language
- EN
- Artist
- Sara Winters
- Released
- 2021-04-23
- Prices
- €0.47 · $0.42
Price history
The trend shows with at least 7 days of history.
- Cardmarket, trend
- CardTrader, Near Mint minimum (EN)
The history starts on October 28, 2026 and grows every day.
Show the data
| Date | Cardmarket, trend | CardTrader, Near Mint minimum (EN) |
|---|---|---|
| October 30, 2026 | €0.46 | €0.29 |
| October 28, 2026 | €0.47 | €0.29 |
Prices
| Source | Non-foil | Foil |
|---|---|---|
| Cardmarket | low – trend €0.46 30-day avg €0.48 | low – trend €0.00 30-day avg – |
| CardTrader (EN) | NM from €0.29 with Zero from €0.46 | NM from – |
| CardTrader (any language) | NM from €0.29 | NM from – |
Cardmarket updated Oct 30, 2026 · CardTrader updated Oct 30, 2026
Buy and look up
Legality
- standard Not legal
- pioneer Not legal
- modern Not legal
- legacy Legal
- vintage Legal
- commander Legal
- pauper Not legal
- alchemy Not legal
- brawl Not legal
- competitivebrawl Not legal
- duel Legal
- future Not legal
- gladiator Not legal
- historic Not legal
- oathbreaker Legal
- oldschool Not legal
- paupercommander Not legal
- penny Not legal
- predh Not legal
- premodern Not legal
- standardbrawl Not legal
- timeless Not legal
- tlr Not legal
Rulings
-
If the vow counter is removed from the creature, it can attack as normal.
-
If the vow counter is moved to another creature, it won't prevent the second creature from attacking normally.
-
Each player, including you, must put a vow counter on a creature they control if able. They can't choose to opt out and sacrifice all of their creatures. The creature you put a vow counter on will remember its promise if another player gains control of it.