Altar of Dementia, Reassembling Skeleton, Pitiless Plunderer, and The Skullspore Nexus

Prerequisites

• Altar of Dementia on the battlefield
• Reassembling Skeleton in the graveyard
• Pitiless Plunderer on the battlefield
• The Skullspore Nexus on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing Reassembling Skeleton
2. When Reassembling Skeleton dies, Pitiless Plunderer and The Skullspore Nexus trigger, creating a creature token and a Treasure token
3. Resolve the Altar of Dementia ability
4. Activate Altar of Dementia by sacrificing the creature token
5. When the creature token dies, Pitiless Plunderer triggers, creating a Treasure token
6. Resolve the Altar of Dementia ability
7. Activate the Treasures by tapping and sacrificing them, adding
8. Activate Reassembling Skeleton by paying , returning it from your graveyard to the battlefield
9. Repeat

Results

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