Kaya's Ghostform, Phyrexian Altar, and Timeless Witness

Prerequisites

• Kaya's Ghostform on the battlefield
• Phyrexian Altar on the battlefield
• Timeless Witness on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Timeless Witness, adding
2. When Timeless Witness dies, Kaya's Ghostform triggers, returning Timeless Witness from your graveyard to the battlefield
3. When Timeless Witness 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 Timeless Witness
5. Repeat

Results

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