Cast Angelfire Ignition by paying {1}{R}{W}, giving Spitemare lifelink and indestructible until end of turn.
Deal damage to Spitemare.
Spitemare triggers, dealing 2 damage to itself and causing you to gain two life.
Repeat step 3.

Infinite lifegain

Infinite lifegain triggers

Spitemare

Angelfire Ignition

Cast Angelfire Ignition by paying {1}{R}{W}, giving Ill-Tempered Loner lifelink and indestructible until end of turn.
Deal damage to Ill-Tempered Loner.
Ill-Tempered Loner triggers, dealing 2 damage to itself and causing you to gain two life.
Repeat step 3.

Combos with "Angelfire Ignition"