Cut Your Losses + Keening Stone
Produces: Infinite mill for target opponent
- Color identity
- U
- Mana
- {9}{U}{U}
Steps
- Cast Cut Your Losses by paying {4}{U}{U}, causing an opponent to mill half their library, rounded down.
- Activate Keening Stone by paying {5} and tapping it, causing the opponent to mill cards equal to the number of cards in their graveyard, thus milling the rest of their library.