Jon Irenicus, Shattered One + Slipstream Serpent

UB identity

Commander legal

The 2 combo pieces

• Jon Irenicus, Shattered One
• Slipstream 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 Slipstream Serpent to an opponent who controls no Islands.
2. When Slipstream Serpent's controller controls no Islands, Slipstream Serpent triggers, causing them to sacrifice it.
3. However, Slipstream Serpent cannot be sacrificed due to its ability.
4. Slipstream Serpent triggers again, creating a mandatory infinite loop that causes the game to end in a draw.

What the combo produces

• Draw the game