Defiler of Faith + The Immortal Sun + Whitemane Lion + Aunt May

Defiler of Faith

The Immortal Sun

Whitemane Lion

Aunt May

How it works

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

This loop turns Whitemane Lion into a self-returning engine by using The Immortal Sun and Defiler of Faith to completely eliminate its mana cost, allowing you to cast it over and over for free while trading 2 life per iteration. As the Lion repeatedly enters and leaves the battlefield, Aunt May rewards every new creature token generated by Defiler of Faith with a steady stream of life. Because Defiler of Faith triggers on every cast, you effortlessly accumulate an endless army of Soldiers alongside infinite life, enters-the-battlefield triggers, and storm count.