Yedora, Grave Gardener, Phyrexian Altar, and Disruptive Pitmage

Prerequisites

• Yedora, Grave Gardener on the battlefield
• Phyrexian Altar on the battlefield
• Disruptive Pitmage on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Disruptive Pitmage, adding
2. When Disruptive Pitmage dies, Yedora triggers, returning Disruptive Pitmage from your graveyard to the battlefield face down as a Forest land
3. Activate Disruptive Pitmage by tapping it, adding
4. Activate Disruptive Pitmage's morph ability by paying , turning it face up
5. Repeat

Results

• Infinite death triggers
• Infinite green mana
• Infinite landfall triggers
• Infinite LTB
• Infinite sacrifice triggers