Jon Irenicus, Shattered One | Barbarian Outcast

Cards

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