Kaya's Ghostform, Bartolomé del Presidio, and Sun Titan

Prerequisites

• Kaya's Ghostform on the battlefield
• Bartolomé del Presidio on the battlefield
• Sun Titan on the battlefield

Steps

1. Activate Bartolomé del Presidio by sacrificing Sun Titan
2. When Sun Titan dies, Kaya's Ghostform triggers, returning Sun Titan from your graveyard to the battlefield
3. When Sun Titan enters, it triggers, returning Kaya's Ghostform from your graveyard to the battlefield attached to Sun Titan 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