Yedora, Grave Gardener, Altar of Dementia, and Kin-Tree Warden

Prerequisites

• Yedora, Grave Gardener on the battlefield
• Altar of Dementia on the battlefield
• Kin-Tree Warden on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing Kin-Tree Warden
2. When Kin-Tree Warden dies, Yedora triggers, returning Kin-Tree Warden 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 Kin-Tree Warden's power
4. Activate Kin-Tree Warden by tapping it, adding
5. Activate Kin-Tree Warden'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