Jon Irenicus, Shattered One + Sea Serpent

UB identity

Commander legal

The 2 combo pieces

• Jon Irenicus, Shattered One
• Sea Serpent

What must be in place

A player controls no Islands.

How to execute it

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

What the combo produces

• Draw the game