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

Draw the game

Jon Irenicus, Shattered One

Island Fish Jasconius

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

Combos with "Island Fish Jasconius"