The Thermonuclear Smoke Devil is a popular boss for mid-to-high-level players looking for profitable Slayer tasks. Located deep within the Smoke Devil Dungeon, it offers decent GP/hr alongside chances at valuable drops like the Smoke Battlestaff and Occult Necklace. This guide will walk you through requirements, gear setups, and optimal strategies to farm it efficiently. This is a guide for the boss, not the common Smoke Devils.
If you want to see more about Normal Smoke Devils, you can also check out our OSRS Smoke Devil Slayer Guide
93 slayer to deal damage against the Thermonuclear Smoke devil
Slayer task from a master (as it is instanced for task-only kills)
If using melee:
90+ attack
90+
strength
70+ defence
90+ hitpoints
49 prayerIf using Magic:
90 magic
Location of Thermonuclear Smoke Devil
The Thermonuclear Smoke Devil is in a section of the Smoke Devil Dungeon. Here are the fastest ways to get here:
Fairy ring BKQ: then run northeast to the dungeon entrance.
Ring of dueling: Teleport to Castle Wars with the ring of dueling and run southwest to the Smoke Devil dungeon.
After entering the Smoke Devil Dungeon, run northwest to find a crevice leading to the Thermonuclear Smoke Devil.
Head slot: Slayer helm (i)
Neck slot: Occult necklace
Cape slot: Imbued god cape
Body slot: Virtus robe top
Leg slot: Virtus robe bottom
Weapon slot: Tumenken's shadow
Ammo slot: Rada's blessing 4
Glove slot: Tormented bracelet
Boot slot: Eternal boots
Ring slot: Magus ring
Head slot: Slayer helmet
Neck slot: Amulet of Fury
Cape slot: Imbued god cape
Body slot: Ahrim's robetop
Leg slot: Ahrim's robeskirt
Weapon slot: Sanguinesti staff
Shield slot: Mage's book
Ammo slot: Rada's blessing 4
Glove slot: Tormented bracelet
Boot slot: Infinity boots
Ring slot: Seers ring (i)
Head slot: Slayer helm (i)
Neck slot: Amulet of rancour
Cape slot: infernal cape
Body slot: Torva platebody
Leg slot: Masori chaps (f)
Weapon slot: Scythe of virtur
Shield slot: Avernic defender
Ammo slot: Rada's blessing 4
Glove slot: Ferocious gloves
Boot slot: Primordial boots
Ring slot: Bellator ring
Head slot: Slayer helmet
Neck slot: Amulet of Fury
Cape slot: Fire cape
Body slot: Bandos chestplate
Leg slot: Karil's leatherskirt
Weapon slot: Osmuten's fang
Shield slot: Dragon defender
Ammo slot: Rada's blessing 4
Glove slot: Barrows gloves
Boot slot: Dragon boots
Ring slot: Berserker ring (i)
For magic, stand your ground and attack from a distance. Tumeken's shadow melts its HP quickly due to the high magic spell level.
For melee, stay close while flicking Protect from Magic, using Piety for maximum DPS.
Watch for poison damage, bring an antidote++ if staying long hours, as the Thermonuclear Smoke Devil can inflict poison.The boss isn't very difficult; it's a basic boss. You just have to try to get the most DPS, use Protect from Magic, loot, and bank.
The Thermonuclear smoke devil only attacks with a typeless magical range attack, which means that protection prayers will not work against it. This attack has a max hit of 8, an attack speed of 2 ticks, and is very accurate.
Players must equip a gas mask, face mask, or slayer helmet, or they will be damaged by the smoke where the Thermonuclear smoke devil is located. Similar to other smoke and dust devils, players will take additional damage if fighting the boss without any of those masks.
You don't need protection prayers for any of these strategies below as his attacks can be easily tanked. However, using piety or redemption prayers is recommended.
A player's attack speed is slower than that of the Thermonuclear smoke devil as It can perform 2 to 2.5 attacks for every attack the player performs. Players can hide from it's attacks by walking under him after every attack they do. With this method, the thermonuclear smoke devil can only perform 1 attack for every attack it receives. It's advisable to use the menu entry swapper to enable "shift click walk here†so you can hold shift and click under him after every attack you do.
Since the thermonuclear smoke devil is close to a fairy ring, players can use up their special attacks on it, finish it off with their regular attacks, and then teleport to their POH to restore their special attack and repeat. Since the fight would end quickly and your stats would be restored at a POH, you should use the best strength-boosting gear. A powerful special attack weapon like the Dragon claws is also recommended. This method is slower and you should expect between 45-55 kills per hour.
Magic spells have a longer attack range than the attacks from the Thermonuclear smoke devil. Players can exploit this and attack from a tile where he is unable to attack back. In the image above, the tiles are safe from its attacks, but you can still cast magic spells on it. However, it can attack after you do a few attacks so you need to step back a tile each time he does, starting from tile 1.
The average Thermonuclear smoke devil kill is worth 26K GP or 29K while on a Konar task. With the recommended stats and gear above, experienced players can kill the Thermonuclear smoke devil 80 times in one hour. This results in a profit of 1.6M GP per hour after the cost of supplies has been deducted.
Dragon chainbody 1 (1/2,000)
Occult necklace 1 (1/350)
Smoke battlestaff 1 (1/521)
Clue scroll (hard) 1 (1/128)
Clue scroll (elite) 1 (1/500)
Jar of smoke 1 (1/2,000)
Pet smoke devil 1 (1/3,000)
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