Delney, Streetwise Lookout, Mox Amber, Dream Stalker, and Urza's Incubator

Prerequisites

• Delney, Streetwise Lookout on the battlefield
• Mox Amber in hand
• Dream Stalker in hand
• Urza's Incubator on the battlefield

Steps

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

Results

• Infinite creature LTB
• Infinite creature ETB
• Infinite storm count