Yomiji, Who Bars the Way, Mox Opal, and Bartolomé del Presidio

Prerequisites

• Yomiji, Who Bars the Way on the battlefield
• Mox Opal on the battlefield
• Bartolomé del Presidio on the battlefield

Steps

1. Activate Bartolomé del Presidio by sacrificing Mox Opal
2. Yomiji triggers, returning Mox Opal from your graveyard to your hand
3. Resolve the Bartolomé del Presidio ability, putting a +1/+1 counter on it
4. Cast Mox Opal by paying
5. Repeat
6. If you control at least one additional artifact, you may also activate Mox Opal once per loop, resulting in infinite colored mana

Results

• Infinite +1/+1 counters on Bartolomé del Presidio
• Infinite colored mana
• Infinite storm count