Serendib Djinn + Assault Suit

Serendib Djinn

Assault Suit

How it works

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