Krenko, Baron of Tin Street, Pitiless Plunderer, and Altar of Dementia

Prerequisites

• Krenko, Baron of Tin Street on the battlefield
• Pitiless Plunderer on the battlefield
• Altar of Dementia on the battlefield
• You control at least one Treasure

Steps

1. Activate a Treasure by tapping and sacrificing it, adding
2. Krenko triggers, causing you to pay to create a 1/1 Goblin creature token with haste
3. Activate Altar of Dementia by sacrificing the Goblin token
4. When the Goblin dies, Pitiless Plunderer triggers, creating a Treasure token
5. Resolve the Altar of Dementia ability, causing target player to mill cards equal to the Goblin's power
6. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill