Delney, Streetwise Lookout, Mox Amber, Umori, the Collector, and Kor Skyfisher

Prerequisites

• Delney, Streetwise Lookout on the battlefield
• Mox Amber in hand
• Umori, the Collector on the battlefield
• Kor Skyfisher in hand

Steps

1. Cast Mox Amber by paying
2. Activate Mox Amber by tapping it, adding
3. Cast Kor Skyfisher by paying
4. When Kor Skyfisher enters the battlefield, it triggers twice due to Delney, returning Mox Amber and Kor Skyfisher from the battlefield to your hand
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite storm count