Riverchurn Monument + Terisian Mindbreaker
Produces: Infinite mill for target opponent
- Color identity
- U
- Mana
- {2}{U}{U}
Prerequisites
Terisian Mindbreaker does not have summoning sickness. You have not activated Riverchurn Monument's exhaust ability.
Steps
- Declare Terisian Mindbreaker as an attacker, triggering its ability, causing an opponent to mill half their library, rounded up.
- Activate Riverchurn Monument's exhaust ability by paying {2}{U}{U} and tapping it, causing each player to mill cards equal to the number of cards in their graveyard, thus causing the player attacked by Terisian Mindbreaker to mill the rest of their library.
How to execute this combo
The "Riverchurn Monument + Terisian Mindbreaker" 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.