Yedora, Grave Gardener, Kamahl, Heart of Krosa, and Phyrexian Altar

Prerequisites

• Yedora, Grave Gardener on the battlefield
• Kamahl, Heart of Krosa on the battlefield
• Phyrexian Altar on the battlefield
• You control another nontoken creature

Steps

1. Activate Phyrexian Altar by sacrificing a nontoken creature, adding
2. The creature dies, triggering Yedora, returning the creature from your graveyard to the battlefield face-down as a Forest land
3. Activate the creature by tapping it, adding
4. Activate Kamahl by paying , causing the creature to become a 1/1 Elemental that is still a land until end of turn
5. Repeat

Results

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