Cut Your Losses + Keening Stone

Mana needed: {9}{U}{U}

U identity

Commander legal

The 2 combo pieces

• Cut Your Losses
• Keening Stone

How to execute it

1. Cast Cut Your Losses by paying {4}{U}{U}, causing an opponent to mill half their library, rounded down.
2. 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.

What the combo produces

• Infinite mill for target opponent