Yenna, Redtooth Regent, Instill Energy, and Faith Healer

Prerequisites

• Yenna, Redtooth Regent on the battlefield
• Instill Energy on the battlefield
• Faith Healer on the battlefield
• You control a creature that can tap to produce at least
• Yenna does not have summoning sickness

Steps

1. Activate the mana-producing creature by tapping it, adding at least
2. Activate Yenna by paying and tapping it, creating a token copy of Instill Energy attached to the mana-producing creature, then untapping Yenna and causing you to scry 2
3. Activate the Instill Energy token by paying , untapping the mana-producing creature
4. Activate Faith Healer by sacrificing the Instill Energy token, causing you to gain 1 life
5. Repeat

Results

• Infinite lifegain
• Infinite lifegain triggers
• Infinite scry 2