Sun Titan, Phantom Train, and Fungal Fortitude

Prerequisites

• Sun Titan on the battlefield
• Phantom Train on the battlefield
• Fungal Fortitude on the battlefield

Steps

1. Activate Phantom Train by sacrificing Sun Titan
2. When Sun Titan dies, Fungal Fortitude triggers, returning Sun Titan from your graveyard to the battlefield
3. When Sun Titan enters, it triggers, returning Fungal Fortitude from your graveyard to the battlefield attached to Sun Titan
4. Resolve the Phantom Train ability
5. Repeat

Results

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