Activate Faith Healer by sacrificing Spirit Loop.
Spirit Loop and Starfield Mystic triggers.
Resolve the Starfield Mystic trigger, putting a +1/+1 counter on it.
Resolve the Spirit Loop trigger, returning it from your graveyard to your hand.
Resolve the Faith Healer ability, causing you to gain two life.
Cast Spirit Loop by paying two life, targeting any creature.
Defiler of Faith triggers, creating a 1/1 Soldier creature token.
Repeat.

Infinite +1/+1 counters on Starfield Mystic

Infinite creature tokens

Infinite ETB

Infinite storm count

Defiler of Faith

Faith Healer

Spirit Loop

Starfield Mystic

Activate Faith Healer by sacrificing Brilliant Halo.
Brilliant Halo and Starfield Mystic triggers.
Resolve the Starfield Mystic trigger, putting a +1/+1 counter on it.
Resolve the Brilliant Halo trigger, returning it from your graveyard to your hand.
Resolve the Faith Healer ability, causing you to gain two life.
Cast Brilliant Halo by paying two life, targeting any creature.
Defiler of Faith triggers, creating a 1/1 Soldier creature token.
Repeat.

Combos with "Starfield Mystic"