Kaya's Ghostform, Carrion Feeder, and Sun Titan

Prerequisites

• Kaya's Ghostform on the battlefield
• Carrion Feeder on the battlefield
• Sun Titan on the battlefield

Steps

1. Activate Carrion Feeder 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 Carrion Feeder ability
4. Repeat

Results

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