Yedora, Grave Gardener, Branchsnap Lorian, and Altar of Dementia

Prerequisites

• Yedora, Grave Gardener on the battlefield
• Branchsnap Lorian on the battlefield
• Altar of Dementia on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing Branchsnap Lorian
2. When Branchsnap Lorian dies, Yedora triggers, returning Branchsnap Lorian from your graveyard to the battlefield face down as a Forest land
3. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Branchsnap Lorian's power
4. Activate Branchsnap Lorian by tapping it, adding
5. Activate Branchsnap Lorian's morph ability by paying , turning it face up
6. Repeat

Results

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