Nether Traitor, Kheru Goldkeeper, Quintorius, Field Historian, and Bartolomé del Presidio

Prerequisites

• Nether Traitor on the battlefield
• Kheru Goldkeeper on the battlefield
• Quintorius, Field Historian on the battlefield
• Bartolomé del Presidio on the battlefield
• available

Steps

1. Activate Bartolomé del Presidio by sacrificing Nether Traitor
2. Activate Bartolomé del Presidio by sacrificing another creature
3. When the creature dies, Nether Traitor triggers, causing you to pay to return Nether Traitor from your graveyard to the battlefield
4. Kheru Goldkeeper and Quintorius triggers, creating a Treasure token and creature token
5. Resolve the Bartolomé del Presidio ability
6. Activate the Treasure by tapping and sacrificing it, adding
7. Repeat

Results

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