Phenax, God of Deception, Sewer Nemesis, and Kitsune's Technique

Prerequisites

• Phenax, God of Deception on the battlefield
• Sewer Nemesis on the battlefield
• Kitsune's Technique in hand
• at most available

Steps

1. Cast Kitsune's Technique by paying its mana cost, causing the opponent named by Sewer Nemesis to mill half their library, rounded up
2. Activate Sewer Nemesis by tapping it, causing the opponent to mill cards equal to the cards in their graveyard, milling the remainder of their library

Results

• Infinite mill for target opponent