Sun Titan, Carrion Feeder, and Necrogen Communion

Prerequisites

• Sun Titan on the battlefield
• Carrion Feeder on the battlefield
• Necrogen Communion on the battlefield

Steps

1. Activate Carrion Feeder by sacrificing Sun Titan
2. When Sun Titan dies, Necrogen Communion triggers, returning Sun Titan from your graveyard to the battlefield
3. When Sun Titan enters, it triggers, returning Necrogen Communion from your graveyard to the battlefield attached to Sun Titan
4. Resolve the Carrion Feeder ability
5. Repeat

Results

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