Defiler of Faith + Whitemane Lion + Grand Arbiter Augustin IV + Haliya, Guided by Light

Defiler of Faith

Whitemane Lion

Grand Arbiter Augustin IV

Haliya, Guided by Light

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

This clever loop achieves infinite prowess and storm by exploiting cost reduction to make casting a creature completely free. With Grand Arbiter Augustin IV on the board reducing the generic cost of white spells, Defiler of Faith steps in to shave off the remaining white mana requirement in exchange for 2 life, allowing you to cast Whitemane Lion for zero mana. Each time the Lion enters the battlefield, its own trigger forces it right back to your hand, while simultaneously satisfying Haliya, Guided by Light to secure a steady stream of life. Meanwhile, Defiler of Faith happily spits out a 1/1 Soldier creature token with every iteration, turning your free bounces into an endless army and infinite life triggers.