Phenax, God of Deception, Consuming Aberration, and Lord Xander, the Collector

Prerequisites

• Phenax, God of Deception on the battlefield
• Consuming Aberration on the battlefield
• Lord Xander, the Collector on the battlefield
• undefined

Steps

1. Declare Lord Xander as an attacker, triggering its second ability, causing the defending player to mill half their library, rounded up
2. Activate Consuming Aberration by tapping it, causing the opponent to mill cards equal to the cards in opponents' graveyards, milling the remainder of their library

Results

• Infinite mill for target opponent