Prerequisites
- Vilis, Broker of Blood on the battlefield
- Feast of Sanity on the battlefield
- Aeromoeba on the battlefield
Steps
- Activate Aeromoeba by discarding a card
- Feast of Sanity triggers, dealing 1 damage to you and causing you to gain 1 life
- Vilis triggers, causing you to draw a card
- Resolve the Aeromoeba ability, switching Aeromoeba's power and toughness until end of turn Repeat
Results
Required Cards 3

Vilis, Broker of Blood
Legendary Creature — Demon

Feast of Sanity
Enchantment

Aeromoeba
Creature — Elemental Beast