Fraying Sanity, and Kitsune's Technique

Prerequisites

• Fraying Sanity on the battlefield
• Kitsune's Technique in hand
• at most available

Steps

1. Cast Kitsune's Technique by paying , causing an opponent to mill half their library, rounded up
2. At the beginning of your end step, Fraying Sanity triggers, causing the opponent to mill cards equal to the number of cards put into their graveyard this turn

Results

• Infinite mill for target opponent