Knights of the Black Rose

Mana cost: {3}{W}{B}
Type: Creature — Human Knight
Power / toughness: 4 / 4
Set: The List #MOC-332 (uncommon)

When this creature enters, you become the monarch.
Whenever an opponent becomes the monarch, if you were the monarch as the turn began, that player loses 2 life and you gain 2 life.

Knights of the Black Rose has 3 printings, first in Conspiracy: Take the Crown (2016). EDHREC ranks it #12,223 among Commander cards. It appears most in Queen Marchesa decks (3,716 on EDHREC). 1 public deck on TCG runs it. It has 5 official rulings.

Legality

commander: legal
legacy: legal
vintage: legal
pauper: not legal
modern: not legal
pioneer: not legal
standard: not legal
brawl: not legal

Public decks that run Knights of the Black Rose

Cavalry Charge - March of the Machine Commander, led by Sidar Jabari of Zhalfir

Commanders that run Knights of the Black Rose most

Deck counts from EDHREC.

Often played with Knights of the Black Rose

Cards that show up in the same decks on EDHREC.

Rulings

2016-08-23: Abilities that trigger whenever you “become the monarch” trigger only if you aren't already the monarch. For example, if you are already the monarch as Custodi Lich enters the battlefield, its last ability won't trigger.
2016-08-23: If the triggered ability that causes the monarch to draw a card goes on the stack, and a different player becomes the monarch before that ability resolves, the first player will still draw the card.
2016-08-23: The last ability of Knights of the Black Rose will trigger even if the most recent monarch was another player, as long as you were monarch as the turn began.
2016-08-23: The game starts with no monarch. Once an effect makes one player the monarch, the game will have exactly one monarch from that point forward.
2016-08-23: Being the monarch carries two inherent triggered abilities. “At the beginning of the monarch's end step, that player draws a card” and “Whenever a creature deals combat damage to the monarch, its controller becomes the monarch.”