Phenax, God of Deception + Consuming Aberration + Terisian Mindbreaker

Phenax, God of Deception

Consuming Aberration

Terisian Mindbreaker

How it works

1. Declare Terisian Mindbreaker as an attacker, triggering it, 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.