Lesser Masticore, Bartolomé del Presidio, and Sigil Captain

Prerequisites

• Lesser Masticore on the battlefield
• Bartolomé del Presidio on the battlefield
• Sigil Captain on the battlefield

Steps

1. Activate Bartolomé del Presidio by sacrificing Lesser Masticore When Lesser Masticore dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
2. When Lesser Masticore enters, Sigil Captain triggers, putting a +1/+1 counter on Lesser Masticore Resolve the Bartolomé del Presidio ability
3. Repeat

Results

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