Defiler of Faith + Anointer Priest + Helm of Awakening + Kor Skyfisher

Defiler of Faith

Anointer Priest

Helm of Awakening

Kor Skyfisher

How it works

1. Cast Kor Skyfisher by paying 0 and 2 life due to Defiler of Faith and Helm of Awakening.
2. Defiler of Faith triggers, creating a 1/1 Soldier creature token.
3. When the Soldier enters, Anointer Priest triggers, causing you to gain life.
4. Resolve Kor Skyfisher. When it enters, it and Anointer Priest trigger.
5. Resolve the Kor Skyfisher trigger, returning it from the battlefield to your hand.
6. Resolve the Anointer Priest trigger, causing you to gain life.
7. Repeat.

This loop is a masterclass in cost reduction, turning a modest Kor Skyfisher into a self-sustaining engine. With Helm of Awakening shaving generic mana off everything and Defiler of Faith paying for the remaining white mana with life instead, you can cast Kor Skyfisher for a net mana cost of zero. Every time it enters the battlefield, Defiler of Faith creates a Soldier token to trigger Anointer Priest for infinite life, while Kor Skyfisher's own drawback actually fuels the combo by bouncing itself right back to your hand to be recast endlessly.