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

Draw the game

Jon Irenicus, Shattered One

Slipstream Serpent

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

Combos with "Slipstream Serpent"