Defiler of Faith + Leyline of Vitality + Whitemane Lion + Grand Arbiter Augustin IV

Defiler of Faith

Leyline of Vitality

Whitemane Lion

Grand Arbiter Augustin IV

How it works

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

This ingenious loop lets you cast Whitemane Lion for zero mana by leaning on the cost-reducing power of both Grand Arbiter Augustin IV and Defiler of Faith, whose life-payment option makes the spell free while simultaneously triggering its own Soldier token generation. Every time that 1/1 token enters the battlefield, Leyline of Vitality rewards your board presence by netting you free life, turning the Lion's self-bouncing entry into an endless engine of tokens and lifegain. Because Whitemane Lion simply returns to your hand to reset the loop, you can cast it infinitely to achieve an unbounded storm count and endless creature entry triggers.