Marneus Calgar, Tormod, the Desecrator, Bag of Holding, and Laboratory Maniac

Prerequisites

• Marneus Calgar on the battlefield
• Tormod, the Desecrator on the battlefield
• Bag of Holding on the battlefield
• Laboratory Maniac on the battlefield

Steps

1. Move to your cleanup step, discarding down to your maximum hand size
2. Bag of Holding triggers for each card discarded this way
3. Resolve the first Bag of Holding trigger, exiling the discarded card
4. Tormod triggers, creating a tapped 2/2 Zombie creature token
5. Marneus triggers, causing you to draw a card, or win the game if your library is empty
6. Discard down to your maximum hand size
7. Repeat from step 2

Results

• Infinite draw triggers
• Infinite rummaging
• Infinite self-discard triggers
• Near-infinite ETB
• Near-infinite tapped creature tokens
• Win the game