River Song, Time Walk, and Hoverstone Pilgrim

Prerequisites

• River Song on the battlefield
• Time Walk in hand
• Hoverstone Pilgrim on the battlefield
• each turn available

Steps

1. Cast Time Walk by paying its mana cost, causing you to take an extra turn after this one
2. Activate Hoverstone Pilgrim by paying , causing you to put Time Walk on the bottom of your library from your graveyard
3. Move to your next turn, drawing Time Walk from the bottom of your library due to River Song during your draw step
4. Repeat

Results

• Infinite turns
• Lock
• Skip your draw steps