Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Boss's Chauffeur, and Bartolomé del Presidio

Prerequisites

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
• Boss's Chauffeur on the battlefield
• Bartolomé del Presidio on the battlefield

Steps

1. Activate Bartolomé del Presidio by sacrificing Boss's Chauffeur
2. When Boss's Chauffeur dies, its persist ability and second ability trigger
3. Resolve the second trigger, creating a number of 1/1 Citizen creature tokens equal to the number of +1/+1 counters that were on Boss's Chauffeur
4. Resolve the persist trigger, returning Boss's Chauffeur from your graveyard to the battlefield
5. It'll enter with a number of +1/+1 counters on it equal to the number of creatures you control minus 1 due to its replacement effect
6. Resolve the Bartolomé del Presidio ability
7. Repeat

Results

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