Defiler of Faith + Helm of Awakening + Whitemane Lion + Virulent Emissary

Defiler of Faith

Helm of Awakening

Whitemane Lion

Virulent Emissary

How it works

1. Cast Whitemane Lion by paying 0 and 2 life due to Defiler of Faith and Helm of Awakening.
2. Defiler of Faith triggers, creating a 1/1 Soldier creature token.
3. When the Soldier enters, Virulent Emissary triggers, causing you to gain life.
4. Resolve Whitemane Lion. When it enters, it and Virulent Emissary trigger.
5. Resolve the Whitemane Lion trigger, returning it from the battlefield to your hand.
6. Resolve the Virulent Emissary trigger, causing you to gain life.
7. Repeat.

This clever engine loops Whitemane Lion entirely for free by stacking cost reductions from Helm of Awakening and Defiler of Faith, turning white mana requirements into a mere payment of life. As you continuously cast and bounce the Lion, the passive presence of Virulent Emissary capitalizes on every iteration to pad your life total. Meanwhile, each loop triggers Defiler of Faith's triggered ability to flood the board with an endless army of 1/1 Soldier creature tokens.