Yedora, Grave Gardener, Living Lands, and Phyrexian Altar

Prerequisites

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

Steps

1. Activate Phyrexian Altar by sacrificing another nontoken creature you control, adding one mana of any color
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 colored mana
• Infinite death triggers
• Infinite ETB
• Infinite landfall triggers
• Infinite LTB
• Infinite sacrifice triggers