Saffi Eriksdotter, Phantom Train, and Renegade Rallier

Prerequisites

• Saffi Eriksdotter on the battlefield
• Phantom Train on the battlefield
• Renegade Rallier on the battlefield

Steps

1. Activate Saffi by sacrificing it, targeting Renegade Rallier Activate Phantom Train by sacrificing Renegade Rallier When Renegade Rallier dies, Saffi triggers, returning Renegade Rallier from your graveyard to the battlefield
2. When Renegade Rallier enters, it triggers, returning Saffi from your graveyard to the battlefield
3. Resolve the Phantom Train ability
4. Repeat

Results

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