Sour Arrow

Sour Arrow is a ranged weapon in Grounded. It is a Tier 3 item. It deals 15 damage. It has 5 stun. In-game it is described as: "A simple arrow that deals sour damage."

A ranged weapon: keep your distance and let its damage type land on a target's weakness before the fight closes in.

Its 15 damage puts it around the middle of the 28 ranged entries tracked here (#15 by raw damage).

Its Sour augmentation matches the 3 creatures in this database that are weak to Sour damage — including Black Widow, Director Schmector, and Spiny Water Flea.

Practical notes: it lands 5 stun per hit and is obtained via Analyze Sour Lump.

Verdict: Overall Sour Arrow is a ranged weapon whose Sour elemental damage is worth matching to the creatures weak to it.