Crimson Honor Guard
Guarda de Honra Carmesim
Guardia de honor carmesí
Creature — Vampire Knight
Trample At the beginning of each player's end step, Crimson Honor Guard deals 4 damage to that player unless they control a commander.
The player could control any player’s commander to satisfy Crimson Honor Guard’s ability. If a player gains control of another player’s commander “until end of turn,” the player who gained control of it will still control that commander during the end step.
Crimson Honor Guard’s last ability triggers at the beginning of each player’s end step whether that player controls a commander or not. Whether that player controls a commander is checked only as the ability resolves.