Defiler of Faith + The Wind Crystal + Soul's Attendant + Whitemane Lion

Defiler of Faith

The Wind Crystal

Soul's Attendant

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, Soul's Attendant triggers, causing you to gain life.
4. Resolve Whitemane Lion. When it enters, it and Soul's Attendant trigger.
5. Resolve the Whitemane Lion trigger, returning it from the battlefield to your hand.
6. Resolve the Soul's Attendant trigger, causing you to gain life.
7. Repeat.

This loop relies on Whitemane Lion's self-bouncing entry to continuously recycle itself for free, thanks to the cost reduction of Defiler of Faith combined with The Wind Crystal. Every time the Lion drops, Defiler of Faith’s trigger populates your board with a fresh 1/1 Soldier creature token. That token's arrival lovingly wakes up Soul's Attendant, netting you life that is further doubled by The Wind Crystal's passive life-doubling effect. You simply use the returned Whitemane Lion to repeat the cycle infinitely, generating an endless army of tokens and boundless lifegain along the way.