At the beginning of your end step, Jon Irenicus triggers, causing an opponent who controls no Islands to gain control of Dandân.
Dandân triggers, causing the opponent to sacrifice it.
However, Dandân cannot be sacrificed due to its ability granted by Jon Irenicus.
Dandân triggers again, creating a mandatory infinite loop that causes the game to end in a draw.

Draw the game

Jon Irenicus, Shattered One

Dandân

If needed, give control of Dandân to an opponent who controls no Islands.
When Dandân's controller controls no Islands, Dandân triggers, causing them to sacrifice it.
However, Dandân cannot be sacrificed due to Assault Suit.
Dandân triggers again, creating a mandatory infinite loop that causes the game to end in a draw.

Combos with "Dandân"