Maddening Cacophony + Keening Stone
Produces: Infinite mill for target opponent, Near-infinite mill
- Color identity
- U
- Mana
- {9}{U}{U}
Steps
- Cast Maddening Cacophony with kicker by paying {4}{U}{U}, causing each opponent to mill half their library, rounded up.
- Activate Keening Stone by paying {5} and tapping it, causing an opponent to mill cards equal to the number of cards in their graveyard, thus milling the rest of their library.
How to execute this combo
The "Maddening Cacophony + Keening Stone" 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, Near-infinite mill.
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.