From Pathfinder Lost Omens Draconic Codex, which isn't enabled.

Divine Dragon's Watch

SPELL 5

UNCOMMON CONCENTRATE CONTINGENCY MANIPULATE SANCTIFIED SPIRIT

Traditions divine

Cast 10 minutes

Range touch

Targets 1 creature

Duration 24 hours

You summon an invisible divine draconic spirit to watch over your target. When the spell is complete, you gain the Dragon's Protection reaction; once you use the reaction, the spell ends.

Dragon's Protection (concentrate, sanctified, spirit)

Trigger An enemy you can see would reduce this spell's target to 0 Hit Points

Effect The dragon intercepts, preventing the spell's target from being knocked out; the spell's target remains at 1 Hit Point. As the dragon disappears, it flies over the triggering enemy and releases its retributive breath, dealing 5d4 spirit damage to it with a basic Reflex save.

Heightened (+1) The damage increases by 1d4.

Spell Effect: Divine Dragon's Watch

Pathfinder Lost Omens Draconic CodexORC