One with the Kami, Umbral Mantle, and Altar of Dementia

Prerequisites

• One with the Kami on the battlefield
• Umbral Mantle on the battlefield
• Altar of Dementia on the battlefield
• One with the Kami attached to any creature you control
• Umbral Mantle attached to any creature you control except the creature with One with the Kami attached

Steps

1. Activate Altar of Dementia by sacrificing the creature with Umbral Mantle attached
2. When the creature dies, One with the Kami triggers, creating a number of 1/1 Spirit creature tokens equal to that creature's power
3. Resolve the Altar of Dementia ability, causing target player to mill cards equal to the sacrificed creature's power
4. Activate Umbral Mantle's equip ability by paying , attaching it to a Spirit token
5. Repeat

Results

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