Kaya's Ghostform, Bartolomé del Presidio, and Iridescent Drake

Prerequisites

• Kaya's Ghostform on the battlefield
• Bartolomé del Presidio on the battlefield
• Iridescent Drake on the battlefield

Steps

1. Activate Bartolomé del Presidio by sacrificing Iridescent Drake
2. When Iridescent Drake dies, Kaya's Ghostform triggers, returning Iridescent Drake from your graveyard to the battlefield
3. When Iridescent Drake enters, it triggers, returning Kaya's Ghostform from your graveyard to the battlefield attached to Iridescent Drake Resolve the Bartolomé del Presidio ability
4. Repeat

Results

• Infinite +1/+1 counters on a creature
• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers