Fleet Swallower, and Bruvac the Grandiloquent

Prerequisites

• Fleet Swallower on the battlefield
• Bruvac the Grandiloquent on the battlefield
• Fleet Swallower does not have summoning sickness
• An opponent has an even library size

Steps

1. Declare Fleet Swallower as an attacker, attacking any opponent with an even library size
2. Fleet Swallower triggers, causing the opponent to mill their entire library

Results

• Infinite mill for target opponent