Teshar, Ancestor's Apostle, Scrap Trawler, Jeweled Lotus, and Phantom Train

Prerequisites

• Teshar, Ancestor's Apostle on the battlefield
• Scrap Trawler in the graveyard
• Jeweled Lotus in hand
• Phantom Train on the battlefield

Steps

1. Cast Jeweled Lotus by paying its mana cost
2. Teshar triggers, returning Scrap Trawler from your graveyard to the battlefield
3. Activate Jeweled Lotus by tapping and sacrificing it
4. Activate Phantom Train by sacrificing Scrap Trawler
5. When Scrap Trawler dies, it triggers, returning Jeweled Lotus from your graveyard to your hand
6. Resolve the Phantom Train ability
7. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Infinite colored mana that can only be spent to cast your commander
• Infinite +1/+1 counters on a creature