Defiler of Faith + The Wind Crystal + Trostani, Selesnya's Voice + Whitemane Lion

Defiler of Faith

The Wind Crystal

Trostani, Selesnya's Voice

Whitemane Lion

How it works

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

This loop relies on casting Whitemane Lion for free by combining the cost-reduction powers of Defiler of Faith and The Wind Crystal to completely wipe away its mana value. Once the Lion enters, its own trigger forces it right back to your hand, ready to be recast immediately while netting you a 1/1 Soldier token thanks to Defiler of Faith's triggered ability. Every time that new Soldier token hits the battlefield, Trostani, Selesnya's Voice triggers to reward you with life—a total that is further doubled by The Wind Crystal's passive life-doubling effect to keep your life total safely out of reach while you loop infinitely.