Soul Warden, Darien, King of Kjeldor, Dingus Staff, and Altar of Dementia

Prerequisites

• Soul Warden on the battlefield
• Darien, King of Kjeldor on the battlefield
• Dingus Staff on the battlefield
• Altar of Dementia on the battlefield
• You control an additional creature
• Your life total is at least three

Steps

1. Activate Altar of Dementia by sacrificing any other creature you control
2. Dingus Staff triggers, dealing 2 damage to you
3. Darien triggers, causing you to create two 1/1 Soldier creature tokens
4. The Soldiers enter the battlefield, triggering Soul Warden twice, causing you to gain two life
5. Resolve the Altar of Dementia ability, causing target player to mill cards equal to the sacrificed creature's power
6. Repeat

Results

• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite lifegain triggers
• Infinite LTB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill