Time Vault, and Vizier of Tumbling Sands

Prerequisites

• Time Vault on the battlefield
• Vizier of Tumbling Sands on the battlefield
• Vizier of Tumbling Sands does not have summoning sickness

Steps

1. Activate Vizier of Tumbling Sands by tapping it, untap Time Vault
2. Activate Time Vault by tapping it, causing you to take an extra turn after this one
3. Repeat each turn

Results

• Infinite turns