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From Pathfinder Lost Omens Character Guide, which isn't enabled.

Tempest-Sun Shielding

FEAT 10
ARCHETYPE
Activity reaction
Archetype Magaambyan Attendant
Prerequisites Tempest-Sun Redirection
Trigger You or an ally within 30 feet takes damage.

You transform unrealized spell energy into a protective shield. If you're a spontaneous spellcaster, expend a spell slot; if you're a prepared spellcaster, expend a spell prepared in a spell slot. Reduce the triggering damage by an amount equal to four times the level of the expended slot or spell.

Pathfinder Lost Omens Character GuideOGL