Zimone, Mystery Unraveler, Yedora, Grave Gardener, and Altar of Dementia

Prerequisites

• Zimone, Mystery Unraveler on the battlefield
• Yedora, Grave Gardener on the battlefield
• Altar of Dementia on the battlefield
• Zimone's ability has triggered at least once this turn
• You control at least one additional nontoken creature

Steps

1. Activate Altar of Dementia by sacrificing another nontoken creature you control
2. When the creature dies, Yedora triggers, returning the creature from your graveyard to the battlefield face-down as a Forest land
3. When the creature enters the battlefield as a Forest land, Zimone triggers
4. Holding priority, activate the land by tapping it, adding
5. Resolve the Zimone trigger, turning the creature face-up
6. Resolve the Altar of Dementia ability from step 1, causing target player to mill cards equal to the sacrificed creature's power
7. Repeat

Results

• Infinite LTB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite mill
• Infinite self-mill
• Infinite green mana
• Infinite landfall triggers