Teshar, Ancestor's Apostle, Scrap Trawler, Lion's Eye Diamond, and Bloodflow Connoisseur

Prerequisites

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

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 Bloodflow Connoisseur 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 Bloodflow Connoisseur ability
7. Repeat

Results

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