Skyshroud Ranger, Amulet of Vigor, Pemmin's Aura, and Dimir Aqueduct

Prerequisites

• Skyshroud Ranger on the battlefield
• Amulet of Vigor on the battlefield
• Pemmin's Aura on the battlefield
• Dimir Aqueduct in hand
• Pemmin's Aura attached to Skyshroud Ranger
• Skyshroud Ranger does not have summoning sickness

Steps

1. Activate Skyshroud Ranger by tapping it, putting Dimir Aqueduct onto the battlefield from your hand
2. When Dimir Aqueduct enters the battlefield, it and Amulet of Vigor trigger
3. Resolve the Amulet of Vigor trigger, untapping Dimir Aqueduct
4. Activate Dimir Aqueduct by tapping it, adding
5. Resolve the Dimir Aqueduct trigger from step 2, returning it to your hand from the battlefield
6. Activate Pemmin's Aura's first ability by paying , untapping Skyshroud Ranger
7. Repeat

Results

• Infinite black mana
• Infinite landfall triggers