Emberlight OSRS: How to Make It (74 Smithing, 77 Attack)

How to Make Emberlight

To make Emberlight, use a tormented synapse on an anvil while you have a hammer and an Arclight in your inventory. The Arclight has to be fully charged (10,000 charges), fully infused, or a mix of the two. You need 74 Smithing (boostable) and must have read Duradel’s notes after While Guthix Sleeps, and wielding the finished sword takes 77 Attack.

Emberlight keeps Arclight’s 70% accuracy and damage bonus against demons, never degrades, has far higher stab and slash accuracy, and its Weaken special drains demons by 15% + 1 instead of 10% + 1. The synapse is a 1/500 drop from tormented demons. It is tradeable, so you can also buy one on the Grand Exchange.

Emberlight Stats vs Arclight

Emberlight is the last step of the Darklight → Arclight line. It is still a 4-tick slash sword with the same demonbane passive, but the accuracy bonuses jump and the charge upkeep is gone for good.

The +53 stab and +32 slash accuracy gain matters most on demons with high Defence, where Arclight’s low base numbers were the weak point even with the demonbane multiplier on top. During development the sword was proposed as “Firelight” and renamed before release.

Requirements to Wield and Create Emberlight

If you still need the combat level, pair this with our Attack 1–99 guide. If Smithing is the blocker, use the Smithing 1–99 guide and remember 74 is boostable for the craft.

Charge + infusion math for the Arclight you upgrade

You do not have to pick only full charges or only full infusion. Each 1% of infusion counts as 100 charges, so 7,000 charges + 30% infusion meets the requirement. Anything above the 10,000-charge equivalent is wasted, so stop adding shards once you reach it. Right-click Check on the sword to see the current infusion.

A fresh Arclight starts at 1,000 charges and caps at 10,000, which takes 30 ancient shards in total counting the 3 used to make it. Charges and infusion are tracked per sword. The drop trick lets you claim several Darklights from Sir Prysin, so you can hold more than one Arclight, but only the one you bring to the anvil is used.

How to Make Emberlight Step by Step

1. 1

   Finish While Guthix Sleeps, get Duradel’s notes from Kuradal and read them.

   Reading them also gives Slayer XP equal to 15 times your Slayer level.

2. 2

   Get a tormented synapse.

   It drops at 1/500 from tormented demons in the Ancient Guthixian Temple, or you can buy one on the Grand Exchange.

3. 3

   Bring one Arclight up to the 10,000-charge equivalent:

   full charges, full infusion, or a mix.

4. 4

   Take that Arclight and a hammer to any anvil.

5. 5

   Use the tormented synapse on the anvil.

   The craft takes 5 ticks (3 seconds) and turns the Arclight into Emberlight.

Failure messages and safety checks

• Away from an anvil: the blade sizzles and the synapse slides off again.
• Under 74 Smithing: you burn yourself for 4 damage and get told you need 74 Smithing. This damage cannot kill you.
• Under 74 Smithing and below 6 Hitpoints: your character refuses the attempt (“I'm not sure I want to try that when I'm this injured”).

Reversing the craft (read this before you experiment)

Emberlight has a Revert option that gives back only the tormented synapse. No infusion or charges are refunded. Rebuilding from scratch costs 1,000 coins to reclaim Darklight from Sir Prysin, 30 ancient shards (3 to upgrade Darklight to Arclight, 27 for the remaining charges) and another tormented synapse.

Keeping several maxed Arclights in the bank so you can move one synapse between weapons is possible. In practice it is more work than getting a spare synapse and leaving a finished Emberlight alone.

Demonbane Bonus and Max Hit

Against demons, Emberlight gives +70% accuracy and damage, the same as Arclight. That is why the wiki’s melee setups still list it for K'ril Tsutsaroth, Cerberus, Abyssal Sire, Skotizo, Yama, Duke Sucellus and demonic gorillas, plus Slayer tasks such as abyssal demons and Nechryael. On K'ril, Skotizo and Yama the spec is part of the recommended setup too.

The wiki puts the boost in weapon terms: because of how max hits are calculated, fighting a demon with Emberlight is comparable to holding a weapon with 66 strength bonus with no other gear, rising to 199 in maxed gear. Check your own setup in a DPS calculator before you trade it against a stronger general weapon.

Modified demonbane targets

Some demons change how much demonbane does. Duke Sucellus has 70% demonbane effectiveness, which cuts the usual 70% bonus to 49% accuracy and damage. If you are learning that boss, use the Duke Sucellus guide alongside this page.

Emberlight Special Attack (Weaken)

Emberlight’s spec is a version of Weaken. It costs 50% special attack energy and, on a successful hit, lowers the target’s Strength, Attack and Defence by 5% of base level + 1, or 15% of base level + 1 against demons.

• Against demons that is 5 percentage points more than the 10% drain on Arclight and Darklight.
• Against non-demons it drains the same 5% + 1 as Arclight.
• The accuracy roll is made against the target’s stab defence.
• The drain only applies if the special hits successfully.

Additive stacking (important vs dragon warhammer logic)

Successful Weaken specs stack additively. A dragon warhammer drain stacks multiplicatively, so the two behave differently on repeat specs. Two successful Emberlight specials reduce Strength, Attack and Defence by 10% + 2 normally, or 30% + 2 against demons.

Is Emberlight Tradeable? PvP and Item Risk

Emberlight and Arclight are both untradeable. The tormented synapse is tradeable, and that is where the sword’s value sits: if a player killer kills you while Emberlight is not one of your protected items, the PKer receives the synapse.

The scorching bow and purging staff carry the same risk: a PKer gets the synapse if the weapon is not protected. All three take the same synapse, so choose by the style you use most. The scorching bow also uses a magic longbow (u), and the purging staff a battlestaff and an iron bar.

Practical Checklist for Accounts

1. 1

   Quest unlock:

   While Guthix Sleeps complete, Duradel’s notes read.

2. 2

   Levels: 77 Attack to wield; 74 Smithing available (boost if needed) to craft.

3. 3

   Materials: tormented synapse + hammer + anvil access.

4. 4

   Arclight ready:

   full charges, full infusion, or a combined equivalent (1% infusion = 100 charges).

5. 5

   First Emberlight on the account gives 730 Smithing XP; repeats give 73 XP.

6. 6

   Do not revert unless you accept losing all charges and infusion and rebuilding Arclight from Darklight + 30 shards.

7. 7

   In PvP danger:

   protect Emberlight, or the PKer gets the synapse.

8. 8

   In bossing:

   confirm whether your target uses full or reduced demonbane effectiveness.

FAQ

Still stuck on a mechanic? Ask the team on our Discord, it is free.