The Monarch mechanic can be deceptive at times, and fights to wrestle control over the crown are likely to ensue, so new players should be wary of when to be defensive and offer value trades and when to full-send their board state to threaten lethal on another player
All it took was banning ten cards in the last two years
Jidoor, Aristocratic Capital has an ability that mills half a players library tacked to an adventure, and if you have some ways to return lands from the battlefield to your hand, you can make a pretty good combo (Fear of Isolation, Kor Skyfisher)
At well over $300, this card makes a run for the most valuable Team Up card, falling just shy of second place.
cards like Lavinia, Azorius Renegade, Boromir, Warden of the Tower, and Decree of Silence mitigate the boon your opponents get