Teshar, Ancestor's Apostle, Scrap Trawler, Arcbound Ravager, and Lion's Eye Diamond

Prerequisites

• Teshar, Ancestor's Apostle on the battlefield
• Scrap Trawler in the graveyard
• Arcbound Ravager on the battlefield
• Lion's Eye Diamond in hand

Steps

1. Cast Lion's Eye Diamond by paying its mana cost
2. Teshar triggers, returning Scrap Trawler from your graveyard to the battlefield
3. Activate Lion's Eye Diamond by discarding your hand and sacrificing it
4. Activate Arcbound Ravager by sacrificing Scrap Trawler
5. When Scrap Trawler dies, it triggers, returning Lion's Eye Diamond from your graveyard to your hand
6. Resolve the Arcbound Ravager ability
7. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Infinite +1/+1 counters on Arcbound Ravager