Yedora, Grave Gardener, Living Lands, and Ashnod's Altar

Prerequisites

• Yedora, Grave Gardener on the battlefield
• Living Lands on the battlefield
• Ashnod's Altar on the battlefield
• You control an additional nontoken creature

Steps

1. Activate Ashnod's Altar by sacrificing another nontoken creature you control, adding
2. The creature dies, triggering Yedora, returning the creature from your graveyard to the battlefield face down as a Forest land and as a 1/1 creature due to Living Lands
3. Repeat

Results

• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite landfall triggers
• Infinite LTB
• Infinite sacrifice triggers