Marchesa's Decree {3}{B}

Name: Marchesa's Decree (The List)
Brand: Magic: The Gathering
SKU: 0528de36-46c6-496c-8514-2944423b3e64

Enchantment

When Marchesa’s Decree enters, you become the monarch.

Whenever a creature attacks you or a planeswalker you control, that creature’s controller loses 1 life.

“Those who seize power must have the means to hold it.”
—Queen Marchesa

Illustrated by Chris Rallis

Faces, Tokens, & Other Parts
The Monarch Card #TCMR-14
Marchesa's Decree #CN2-44

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." (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)