Kaya's Ghostform, Phyrexian Altar, and Pharika's Mender

Prerequisites

• Kaya's Ghostform on the battlefield
• Phyrexian Altar on the battlefield
• Pharika's Mender on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Pharika's Mender, adding
2. When Pharika's Mender dies, Kaya's Ghostform triggers, returning Pharika's Mender from your graveyard to the battlefield
3. When Pharika's Mender enters the battlefield, it triggers, returning Kaya's Ghostform from your graveyard to your hand
4. Cast Kaya's Ghostform by paying , attaching it to Pharika's Mender
5. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers
• Infinite storm count