Carth the Lion, Liliana Vess, Beacon of Tomorrows, and Double Major

Prerequisites

• Carth the Lion in hand
• Liliana Vess on the battlefield
• Beacon of Tomorrows in hand
• Double Major in hand
• each turn available

Steps

1. Cast Carth the Lion by paying
2. In response, cast Double Major by paying , creating a nonlegendary copy of the Carth the Lion spell
3. Resolve both spells, causing two copies of Carth the Lion to enter the battlefield
4. Cast Beacon of Tomorrows by paying , causing you to take an extra turn after this one and shuffle Beacon of Tomorrows into your library
5. 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
6. Move to your next turn, drawing Beacon of Tomorrows during your draw step
7. Repeat from step 4

Results

• Infinite turns
• Skip your draw step