Yenna, Redtooth Regent, Peregrin Took, Krark-Clan Ironworks, and Faith Healer

Prerequisites

• Yenna, Redtooth Regent on the battlefield
• Peregrin Took on the battlefield
• Krark-Clan Ironworks on the battlefield
• Faith Healer on the battlefield
• Yenna does not have summoning sickness
• You control at least one Aura
• available

Steps

1. Activate Yenna by paying and tapping it, creating a token copy of an Aura you control and a Food artifact token, then untapping Yenna and causing you to scry 2
2. Activate Krark-Clan Ironworks by sacrificing the Food, adding
3. Activate Faith Healer by sacrificing the Aura token, causing you to gain life equal to the Aura's mana value
4. Repeat

Results

• Infinite lifegain
• Infinite lifegain triggers
• Infinite scry 2