Promise of Loyalty 
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.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL
Prints
Final Fantasy Commander
EN · FIC · 2025-06-13
Bloomburrow Commander
EN · BLC · 2024-08-02
Murders at Karlov Manor Commander
EN · MKC · 2024-02-09
Commander Masters
EN · CMM · 2023-08-04
March of the Machine Commander
EN · MOC · 2023-04-21
Magic Online Promos
EN · PRM · 2021-05-01
Commander 2021
EN · C21 · 2021-04-23
Commander 2021
EN · C21 · 2021-04-23