Bog Serpent + Assault Suit

Prerequisites

• Assault Suit attached to Bog Serpent.
• A player controls no Swamps.

Steps

1. 1If necessary, at the beginning of the upkeep of an opponent who controls no Swamps, Assault Suit triggers, causing that player to gain control of Bog Serpent and untap it.
2. 2Bog Serpent triggers, but cannot be sacrificed due to Assault Suit's ability.
3. 3Step 2 repeats forever, resulting in a mandatory infinite loop that causes the game to end in a draw.

Effects

• Draw the game