Carth the Lion, Liliana Vess, Beacon of Tomorrows, and Irenicus's Vile Duplication

Prerequisites

• Carth the Lion on the battlefield
• Liliana Vess on the battlefield
• Beacon of Tomorrows in hand
• Irenicus's Vile Duplication in hand
• each turn available

Steps

1. Cast Irenicus's Vile Duplication by paying , creating a nonlegendary copy of Carth the Lion with flying
2. Cast Beacon of Tomorrows by paying , causing you to take an extra turn after this one and shuffle Beacon of Tomorrows into your library
3. Activate Liliana Vess's second loyalty ability by removing zero loyalty counters from it, searching your library for Beacon of Tomorrows, then shuffling your library and putting it on top
4. Move to your next turn, drawing Beacon of Tomorrows during your draw step
5. Repeat from step 2

Results

• Infinite turns
• Skip your draw step