Jon Irenicus, Shattered One, and Barbarian Outcast

Prerequisites

• Jon Irenicus, Shattered One on the battlefield
• Barbarian Outcast on the battlefield
• An opponent controls no Swamps

Steps

1. At the beginning of your end step, Jon Irenicus triggers, giving control of Barbarian Outcast to an opponent who controls no Swamps
2. When Barbarian Outcast's controller controls no Swamps, Barbarian Outcast triggers, causing them to sacrifice it
3. However, Barbarian Outcast cannot be sacrificed due to its ability
4. Barbarian Outcast triggers again, creating a mandatory infinite loop that causes the game to end in a draw

Results

• Draw the game