Kaya's Ghostform, Umbral Collar Zealot, and Renegade Rallier

Prerequisites

• Kaya's Ghostform on the battlefield
• Umbral Collar Zealot on the battlefield
• Renegade Rallier on the battlefield

Steps

1. Activate Umbral Collar Zealot by sacrificing Renegade Rallier
2. When Renegade Rallier dies, Kaya's Ghostform triggers, returning Renegade Rallier from your graveyard to the battlefield
3. When Renegade Rallier enters, it triggers, returning Kaya's Ghostform from your graveyard to the battlefield attached to Renegade Rallier Resolve the Umbral Collar Zealot ability
4. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers
• Infinite surveil