Promise of Loyalty
Sorcery
MOCMarch of the Machine Commander#200rare
"It's us against the world. Forever."
- Finishes
- Nonfoil
- Border
- black
- Security stamp
- oval
- Frame
- 2015
- Pull rate
- about 1 per booster
- Illustrator
- Sara Winters
- Found in
- March of the Machine Commander Deck Cavalry Charge
CommanderLegalModernNot legalStandardNot legal
Format legality
Constructed
StandardNot legal
PioneerNot legal
ModernNot legal
LegacyLegal
VintageLegal
PauperNot legal
Commander
CommanderLegal
Pauper CommanderNot legal
Duel CommanderLegal
PreDHNot legal
OathbreakerLegal
Tiny LeadersNot legal
Arena
AlchemyNot legal
HistoricNot legal
TimelessNot legal
BrawlNot legal
Standard BrawlNot legal
Competitive BrawlNot legal
GladiatorNot legal
Other
PremodernNot legal
Old SchoolNot legal
Penny DreadfulNot legal
Future StandardNot legal
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.
Market · per finishspark updated 18m ago · prices as of 2026-08-30
TCGplayerFinish
Market
Δ 30D · Trend
Low
Buylist
Buy / Sell Gap
Buy
Nonfoil
$0.39
+5.4%
Since Feb 2024:H $0.39L $0.10$0.19
$0.03
$0.16+84% · normal spread
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Low: tcgplayer
Buylist: cardkingdom
Rulings
3 · latest Apr 16, 2021
- WotCApr 16, 2021
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.
- WotCApr 16, 2021
If the vow counter is moved to another creature, it won't prevent the second creature from attacking normally.
- WotCApr 16, 2021
If the vow counter is removed from the creature, it can attack as normal.