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This article is about the boss. For the Slayer monster, see Smoke devil.
Not to be confused with Nuclear smoke devil.
Invasion plans
This article has a strategy guide here.
All information on mechanics and strategy will be on this page.

The Thermonuclear smoke devil, often referred to as Thermy, is the boss version of the Smoke devil, found in the Smoke Devil Dungeon. These require a minimum of 93 Slayer to kill. Located at the Smoke Devil Dungeon south of Castle Wars, the Thermonuclear smoke devil can only be attacked on a smoke devil task, with the exception of one kill for the Western Provinces Diary (provided that the player has 93 Slayer without boosting).

It is the only monster to drop the Smoke battlestaff and the pet smoke devil. Their non-boss variants, however, also drop the Occult necklace, albeit at a lower rate.

A dwarf multicannon cannot be used inside the boss room. If attempted, the cannon will be destroyed (similar to areas like at KBD or KQ).

Drops

Estimated drop rates are based off 2,000 kills.[1]

100% drops

Item Quantity Rarity GE market price
Ashes Ashes 1 Always 29

Weapons

Item Quantity Rarity GE market price
Rune dagger Rune dagger 1 Uncommon (~5/128) 4,536
Rune battleaxe Rune battleaxe 1 Uncommon (~3/128) 24,591
Mystic air staff Mystic air staff 1 Uncommon (~3/128) 25,258
Mystic fire staff Mystic fire staff 1 Uncommon (~3/128) 25,361
Rune scimitar Rune scimitar 1 Uncommon (~2/128) 15,099
Dragon scimitar Dragon scimitar 1 Rare (~1/128) 59,944
Ancient staff Ancient staff 1 Rare (1/129)[2] 78,500
Smoke battlestaff Smoke battlestaff 1 Rare (1/512) 3,562,049

Armour

Item Quantity Rarity GE market price
Red d'hide body Red d'hide body 1 Uncommon (~3.5/128) 6,384
Rune chainbody Rune chainbody 1 Uncommon (~3/128) 29,645
Occult necklace Occult necklace 1 Rare (1/350) 889,044
Dragon chainbody Dragon chainbody 1 Very rare (1/2,000) 1,178,736

Runes/Ammunition

Item Quantity Rarity GE market price
Smoke rune Smoke rune 100 Common (~9/128) 3,700
Air rune Air rune 300 Common (~8/128) 1,500
Soul rune Soul rune 60 Common (~7/128) 8,880
Rune arrow 5 Rune arrow 100 Uncommon (~2/128) 8,800
Rune knife (p) Rune knife(p++) 50 Rare (~0.5/128) 54,150

Seeds

Item Quantity Rarity GE market price
Herb seed 5 Snapdragon seed 2 Uncommon (~2/128) 102,416
Magic seed 5 Magic seed 1 Rare (~1/128) 147,137

Materials

Item Quantity Rarity GE market price
Pure essence Pure essence 300 (noted) Common (~5/128) 1,200
Desert goat horn Desert goat horn 50 (noted) Uncommon (~2/128) 25,100
Molten glass Molten glass 100 (noted) Uncommon (~2/128) 20,000
Mithril bar Mithril bar 20 (noted) Uncommon (~2/128) 17,520
Grimy toadflax Grimy toadflax 15 (noted) Uncommon (~2/128) 30,015
Coal Coal 150 (noted) Uncommon (~2/128) 38,250
Onyx bolt tips 5 Onyx bolt tips 12 Uncommon (~2/128) 99,384
Magic logs Magic logs 20 (noted) Uncommon (~2/128) 22,080
Gold ore Gold ore 200 (noted) Uncommon (~2/128) 69,400
Grapes Grapes 100 (noted) Rare (~1/128) 16,300
Diamond Diamond 10 (noted) Rare (~1/128) 20,190

Consumables

Item Quantity Rarity GE market price
Ugthanki kebab Ugthanki kebab 3 Uncommon (~4.5/128) 2,592
Tuna potato Tuna potato 3 Uncommon (~3.5/128) 3,465
Sanfew serum(4) Sanfew serum(4) 2 Uncommon (~3/128) 40,542
Prayer potion(4) Prayer potion(4) 2 Rare (~1/128) 21,730

Other

Item Quantity Rarity GE market price
Coins 10000 Coins 10,000–20,000 Common (~14/128) Not sold
Tinderbox Tinderbox 1 Common (~9.5/128) 79
Bullseye lantern Bullseye lantern (unlit) 1 Uncommon (~4/128) 1,349
Fire talisman Fire talisman 1 Uncommon (~4/128) 2,159
Gem drop table Gem drop table 1 Uncommon (~3/128) Not sold
Dragonstone ring Dragonstone ring 1 Uncommon (~1.5/128) 12,103
Crystal key Crystal key 1 Rare (1/128)[3] 24,228

Tertiary drops

Item Quantity Rarity GE market price
Clue scroll (elite) Clue scroll (elite) 1 Rare (1/500) Not sold
Pet smoke devil Pet smoke devil 1 Very rare (1/3,000) Not sold

Gem drop table

In addition to the drops above, this monster approximately has a 3/128 chance to access the gem drop table.

Show/hide gem drop table
Item Quantity Rarity GE market price
Uncut sapphire Uncut sapphire 1 Rare
(1/170.67; 1/128)[G 1]
991
Uncut emerald Uncut emerald 1 Rare
(1/341.33; 1/256)[G 1]
981
Uncut ruby Uncut ruby 1 Rare
(1/682.67; 1/512)[G 1]
1,783
Nature talisman Nature talisman 1 Very rare
(1/1,820.44; 1/1,365.33)[G 1]
793
Uncut diamond Uncut diamond 1 Very rare
(1/2,730.67; 1/2,048)[G 1]
3,759
Rune javelin Rune javelin 5 Very rare
(1/5,461.33; 1/4,096)[G 1]
810
Loop half of key Loop half of key 1 Very rare
(1/5,461.33; 1/4,096)[G 1]
9,387
Tooth half of key Tooth half of key 1 Very rare
(1/5,461.33; 1/4,096)[G 1]
14,342
Rune spear Rune spear 1 Very rare
(1/87,381.33; 1/7,680)[G 1]
12,081
Shield left half Shield left half 1 Very rare
(1/174,762.67; 1/15,360)[G 1]
65,632
Dragon spear Dragon spear 1 Very rare
(1/233,016.89; 1/20,480)[G 1]
37,745
  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 The drop rate is increased when wearing a Ring of wealth.


Trivia

  • The thermonuclear smoke devil was graphically updated on 27 September 2018 as part of a update. Prior to the update, it was simply a larger version of the smoke devils scattered across the dungeon.

References

  1. 2,000 Thermonuclear smoke devil kills
  2. https://twitter.com/JagexAsh/status/851591877711233024
  3. https://twitter.com/JagexAsh/status/707585888566558720