The Sun Scourge, Horizon Wiki

This powerful mid-range bow was crafted by a Tenakth rebel for one purpose: wreak destruction on the Carja Sundom.Inventory description The Sun Scourge is a legendary Hunter Bow in Horizon Forbidden West. This weapon can be obtained after defeating Asera and looting her in Rebel Camp: First Forge. By default, it has a 2% chance to instantly inflict the Brittle state on enemies, along with dealing 10% more damage while sliding or shooting from mid-air. It can be upgraded five times.

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How To Get The Sun Scourge (Legendary Bow) In Horizon Forbidden West