best rings and amulets are accessible as early as Act 1. The Caustic Band stands out for melee fighters, providing +2 Acid damage per weapon attack, making it a valuable asset in the game's early stages.

Obtaining the Caustic Band requires you to venture through the Underdark on your journey to the Shadow-cursed Lands. This route is rich with quests, set against a conflict between the Duergar and the native Myconids. Engaging these quests immerses players in captivating storylines and creates opportunities to acquire valuable loot and items for purchase, including the sought-after ring.

If you've opted to take age via the Mountain route to the Shadow-cursed lands, it's still possible to venture back to the Underdark before advancing to Act 2. This detour allows for exploration and the chance to acquire the Caustic Band, among other notable items.

Caustic Band's Location

Sold By a Merchant In The Underdark

The Caustic Band is sold by Derryth Bonecloak, a merchant in the Underdark whose husband, Baelen, has recently disappeared. In conversation, when she asks if you've seen her missing husband, tell her you'll keep an eye out to find and save Baelen in BG3. Upon agreeing to help, she grants you access to her wares, enabling you to purchase the coveted ring.

Trade prices in Baldur's Gate 3 fluctuate based on your Persuasion proficiency and overall reputation. For optimal deals, engage vendors with the character boasting the highest Charisma stat.

Derryth appears in two distinct locations during your Baldur's Gate 3 playthrough. In Act 1, she is located in a clearing within the Myconid village, close to the western entrance at coordinates (X:51, Y:-96). To find her, navigate the Underdark to the Ebonlake Grotto, home to the Myconid Colony.

For those who'd prefer to avoid the Underdark, you can meet Derryth again upon entering the Lower City in BG3. She resides at her shop, Bonecloak's Apothecary, northeast of the Lower City Central Wall Waypoint, where she sells the Caustic Band and other potentially useful items. However, this encounter occurs late in Act 3, when you may find other items that better suit your limited ring slots, decreasing its utility.

How To Reach The Myconid Colony

To reach the Myconid village, head north from the Selûnite Outpost, where you first enter the Underdark via the Defiled Temple in Baldur's Gate 3. Follow the path to the Decrepit Village, then ascend the rocks until you spot giant mushrooms before approaching the Myconid Colony. Upon arriving, the Colony's Sovereign will question your intentions. You must a Persuasion Check to convince Sovereign Spaw that you're harmless and will be granted entry into the village.

In addition to meeting Derryth, the Myconid Colony is home to other vendors like Omeluum and Blurg, who bestow your party with helpful knowledge about your Illithid Tadpoles. Beyond purchasing the Caustic Band, gaining access to the Myconid village allows you to embark upon engaging quests that further the Underdark's narrative.

Choosing to side with Glut or the Duergar and subsequently attacking the Myconids will turn the colony hostile, restricting access to the area and preventing trade with Derryth and other vendors.

How To Use The Caustic Band

The Caustic Band features Malefic Excretion, a ive ability granting +2 Acid damage per successful weapon attack. While acid damage is underrepresented among the game's various damage types, it is a valuable weapon asset in Baldur's Gate 3. Few enemies possess acid resistance, making it a reliably effective choice. While foes are coated in acid, it inflicts damage over time and reduces their Armor Class by two, rendering them more vulnerable to attacks.

Given its benefits, the Caustic Band is a unique accessory, ideally suited for your party's close combatants. Attuned to those wielding melee-based weapons, it should be utilized by the best classes in Baldur's Gate 3, including Paladins, Fighters, Rogues, and Barbarians. The ring's enhancement excels when these classes reach Level 5, unlocking extra melee attacks. This amplifies the chances of activating Malefic Excretion, significantly boosting your weapon damage output.