How To Get Arclight In OSRS: Complete Guide

Arclight is one of the most powerful demonbane weapons in Old School RuneScape, requiring 75 Attack to wield. This weapon, an enhanced version of Darklight, is exceptional against demonic foes, providing extra damage, improved accuracy, and utility in combat. Its reliable special attack and fast attack speed make it essential for Slayer tasks, boss encounters, and demon hunting. In this guide, we’ll cover everything you need to know about arclight OSRS, from acquisition to stats, so you can add this formidable weapon to your collection.

How To Get Arclight In OSRS

To obtain arclight OSRS, players must upgrade Darklight by using three Ancient Shards at the altar in the center of the Catacombs of Kourend. Once combined, Darklight transforms permanently into Arclight, greatly enhancing its power against demons. If you lose Arclight, you can reclaim Darklight from Sir Prysin for a fee of 1,000 coins and repeat the upgrade process with three more Ancient Shards to craft Arclight again.

Arclight Stats Overview

The effectiveness of arclight OSRS varies depending on whether it is charged. Each state offers different strengths suitable for different combat scenarios:

Uncharged: +13 Strength, 5-tick speed (3.0s), +16 Slash bonus — provides higher raw strength but slower attack speed.
Charged: +8 Strength, 4-tick speed (2.4s), +38 Slash bonus — faster swings with enhanced accuracy, ideal for demon slaying.

Once charged, Arclight becomes highly effective, balancing speed, accuracy, and damage for consistent performance against demonic enemies.

Special Attack

Arclight retains the special attack from Darklight, known as Weaken, consuming 50% of your special attack energy. When used, Weaken reduces an enemy’s Attack, Strength, and Defence by 5% of their base level plus 1. Against demons, the reduction is even more potent, lowering their stats by 10% plus 2. Unlike the Dragon Warhammer, Arclight’s debuff stacks additively, allowing repeated Weaken uses to significantly weaken even high-level demonic bosses.

Mechanics and Passive Effect

A major strength of arclight OSRS is its passive effect, increasing accuracy and damage by 70% against demons like Abyssal Demons, Black Demons, Greater Demons, and bosses including K’ril Tsutsaroth. The only exception is Duke Sucellus, who receives a 30% bonus. This passive makes Arclight one of the most consistent and powerful weapons for demon-heavy content in Old School RuneScape.

Infusion Mechanic and Upgrading

Arclight features an infusion mechanic where every hit contributes toward a total of 10,000 charges, resulting in 100% infusion. This is essential for upgrading Arclight to Emberlight, a superior version. Upgrading requires level 74 Smithing, Duradel’s notes, and a Tormented Synapse, and can only be done on a fully charged or fully infused Arclight. Emberlight offers higher combat stats and a major advantage as a non-degrading weapon, making it a permanent and reliable upgrade for long-term use.

Final Thoughts on Arclight OSRS

Arclight OSRS remains one of the top demonbane weapons for players focused on demon hunting. With its strong passive bonuses, reliable special attack, and the option to upgrade to Emberlight, it provides unmatched utility and damage output in demon-heavy areas like the Catacombs of Kourend or God Wars Dungeon. Recharging with Ancient Shards and managing infusion ensures players can maintain peak performance. Whether you are a mid-level Slayer or an endgame PvM player, Arclight is a weapon worth obtaining and mastering to dominate demonic encounters.