Teshar, Ancestor's Apostle, Scrap Trawler, Mishra's Bauble, and Ravenous Intruder

Prerequisites

• Teshar, Ancestor's Apostle on the battlefield
• Scrap Trawler in the graveyard
• Mishra's Bauble in hand
• Ravenous Intruder on the battlefield

Steps

1. Cast Mishra's Bauble by paying its mana cost
2. Teshar triggers, returning Scrap Trawler from your graveyard to the battlefield
3. Activate Mishra's Bauble by tapping and sacrificing it
4. Activate Ravenous Intruder by sacrificing Scrap Trawler
5. When Scrap Trawler dies, it triggers, returning Mishra's Bauble from your graveyard to your hand
6. Resolve the Ravenous Intruder ability
7. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Infinite card draw at the beginning of the next upkeep step
• Infinite draw triggers at the beginning of the next upkeep step
• Infinitely large Ravenous Intruder until end of turn