Skyshroud Ranger, Amulet of Vigor, Pemmin's Aura, and Izzet Boilerworks

Prerequisites

• Skyshroud Ranger on the battlefield
• Amulet of Vigor on the battlefield
• Pemmin's Aura on the battlefield
• Izzet Boilerworks 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 Izzet Boilerworks onto the battlefield from your hand
2. When Izzet Boilerworks enters the battlefield, it and Amulet of Vigor trigger
3. Resolve the Amulet of Vigor trigger, untapping Izzet Boilerworks
4. Activate Izzet Boilerworks by tapping it, adding
5. Resolve the Izzet Boilerworks 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 landfall triggers
• Infinite red mana