Promise of Loyalty
Murders at Karlov Manor Commander (MKC) #79 · Rare · Sorcery
Mana cost: {4}{W}
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.
"It's us against the world. Forever."
Illustrated by Sara Winters · Released February 9, 2024
Prices
- Nonfoil: $0.29 USD · €0.29 EUR
Nonfoil price since August 29, 2026: down $0.02 USD (6.5%) to $0.29 USD; low $0.24 USD, high $0.31 USD.
Printings
- Marvel Super Heroes Commander #142 (MSC) · Rare · 2026 · $0.31 USD
- Marvel Super Heroes Commander #319 (MSC) · Rare · 2026 · $0.99 USD
- Secrets of Strixhaven Commander #161 (SOC) · Rare · 2026 · $0.29 USD
- Final Fantasy Commander #249 (FIC) · Rare · 2025 · $0.28 USD
- Bloomburrow Commander #148 (BLC) · Rare · 2024 · $0.31 USD
- Murders at Karlov Manor Commander #79 (this printing) · Rare · 2024 · $0.29 USD
- Commander Masters #833 (CMM) · Rare · 2023 · $0.35 USD
- March of the Machine Commander #200 (MOC) · Rare · 2023 · $0.38 USD
- Magic Online Promos #89994 (PRM) · Rare · 2021
- Commander 2021 #21 (C21) · Rare · 2021 · $0.42 USD
- Commander 2021 #348 (C21) · Rare · 2021 · $2.66 USD
Legality
- Standard: Not legal
- Alchemy: Not legal
- Pioneer: Not legal
- Historic: Not legal
- Modern: Not legal
- Brawl: Not legal
- Legacy: Legal
- Timeless: Not legal
- Vintage: Legal
- Pauper: Not legal
- Commander: Legal
- Penny: Not legal
- Oathbreaker: Legal
- Duel: Legal
Rulings
- 2021-04-16 · wotc — If the vow counter is removed from the creature, it can attack as normal.
- 2021-04-16 · wotc — If the vow counter is moved to another creature, it won't prevent the second creature from attacking normally.
- 2021-04-16 · wotc — 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.
Played in these commander decks
- Killian, Decisive Mentor · in 55% of 49 decks
- Ms. Bumbleflower · in 41% of 49 decks
- Queen Marchesa · in 36% of 50 decks
- Tidus, Yuna's Guardian · in 35% of 49 decks
- Sergeant John Benton · in 30% of 50 decks
- Phelddagrif · in 12% of 49 decks
- Y'shtola, Night's Blessed · in 10% of 49 decks
- Aminatou, Veil Piercer · in 10% of 49 decks