Fleet Swallower + Keening Stone
Produces: Infinite self-mill, Infinite mill for target opponent
- Color identity
- U
- Mana
- {5}
Steps
- Declare Lord Xander as an attacker, triggering its second ability, causing a player to mill half their library, rounded up.
- Activate Keening Stone by paying {5} and tapping it, causing the player 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 "Fleet Swallower + 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 self-mill, 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.