Cheapest priced copy (Conspiracy: Take the Crown): $0.35 at Card Kingdom, near mint, their price list as of .
Crown-Hunter Hireling 
Creature — Ogre Mercenary · 4/4 · Common · Conspiracy: Take the Crown · #50
When this creature enters, you become the monarch.
This creature can't attack unless defending player is the monarch.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Conspiracy: Take the Crown | 50 | Common | $0.35 | $0.49 |
| The List | CN2-50 | Common | $0.35 | — |
5 rulings from Wizards of the Coast
- 23 August 2016If 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.
- 23 August 2016Being 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."
- 23 August 2016Abilities 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.
- 23 August 2016Crown-Hunter Hireling can attack only the monarch or a planeswalker controlled by the monarch. This check is done only as attackers are declared. After that point, Crown-Hunter Hireling won't be removed from combat if that player ceases to be the monarch.
- 23 August 2016The game starts with no monarch. Once an effect makes one player the monarch, the game will have exactly one monarch from that point forward.