Enduring Renewal, Flamecache Gecko, and Phantom Train

Prerequisites

• Enduring Renewal on the battlefield
• Flamecache Gecko in hand
• Phantom Train on the battlefield
• available

Steps

1. Cast Flamecache Gecko by paying its mana cost
2. When Flamecache Gecko enters, it triggers, adding
3. Activate Phantom Train by sacrificing Flamecache Gecko
4. When Flamecache Gecko dies, Enduring Renewal triggers, returning Flamecache Gecko from your graveyard to your hand
5. Resolve the Phantom Train ability, putting a +1/+1 counter on Phantom Train and causing it to become a creature until end of turn
6. Repeat

Results

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