Riverchurn Monument + Jidoor, Aristocratic Capital // Overture
Produces: Infinite mill for target opponent
- Color identity
- U
- Mana
- {6}{U}{U}{U}{U}
Prerequisites
You have not activated Riverchurn Monument's exhaust ability.
Steps
- Cast Overture by paying {4}{U}{U}, causing each opponent to mill half their library, rounded down.
- Activate Riverchurn Monument's exhaust ability by paying {2}{U}{U} and tapping it, causing each opponent to mill the remainder of their library.
How to execute this combo
The "Riverchurn Monument + Jidoor, Aristocratic Capital // Overture" combo takes 2 steps in order. Make sure you have the mana open and permanents listed in the prerequisites before you start — opponents can respond between steps.
The end result: Infinite mill for target opponent.
Practice the line offline: lay out the cards, walk through each step, and note where you can lose the combo (summoning sickness, lack of priority, removal on a key permanent). In game, announce each step clearly; in casual play you can offer to shortcut after demonstrating the loop.
The best window is a turn when opponents are tapped out or after they commit a spell — hold protection (a counter, Vexing Shusher) if the combo wins on the spot.