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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 31

Weapons

Item Quantity Rarity GE market price
Rune dagger Rune dagger 1 Uncommon (~5/128) 4,507
Rune battleaxe Rune battleaxe 1 Uncommon (~3/128) 24,597
Mystic air staff Mystic air staff 1 Uncommon (~3/128) 25,205
Mystic fire staff Mystic fire staff 1 Uncommon (~3/128) 25,211
Rune scimitar Rune scimitar 1 Uncommon (~2/128) 15,117
Dragon scimitar Dragon scimitar 1 Rare (~1/128) 59,661
Ancient staff Ancient staff 1 Rare (1/129)[2] 68,450
Smoke battlestaff Smoke battlestaff 1 Rare (1/512) 3,805,448

Armour

Item Quantity Rarity GE market price
Red d'hide body Red d'hide body 1 Uncommon (~3.5/128) 6,274
Rune chainbody Rune chainbody 1 Uncommon (~3/128) 29,632
Occult necklace Occult necklace 1 Rare (1/350) 778,360
Dragon chainbody Dragon chainbody 1 Very rare (1/2,000) 998,903

Runes/Ammunition

Item Quantity Rarity GE market price
Smoke rune Smoke rune 100 Common (~9/128) 4,600
Air rune Air rune 300 Common (~8/128) 1,500
Soul rune Soul rune 60 Common (~7/128) 8,760
Rune arrow 5 Rune arrow 100 Uncommon (~2/128) 11,800
Rune knife (p) Rune knife(p++) 50 Rare (~0.5/128) 23,650

Seeds

Item Quantity Rarity GE market price
Herb seed 5 Snapdragon seed 2 Uncommon (~2/128) 95,864
Magic seed 5 Magic seed 1 Rare (~1/128) 154,113

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) 23,200
Molten glass Molten glass 100 (noted) Uncommon (~2/128) 15,500
Mithril bar Mithril bar 20 (noted) Uncommon (~2/128) 14,100
Grimy toadflax Grimy toadflax 15 (noted) Uncommon (~2/128) 16,875
Coal Coal 150 (noted) Uncommon (~2/128) 26,250
Onyx bolt tips 5 Onyx bolt tips 12 Uncommon (~2/128) 100,656
Magic logs Magic logs 20 (noted) Uncommon (~2/128) 23,140
Gold ore Gold ore 200 (noted) Uncommon (~2/128) 71,600
Grapes Grapes 100 (noted) Rare (~1/128) 13,500
Diamond Diamond 10 (noted) Rare (~1/128) 19,970

Consumables

Item Quantity Rarity GE market price
Ugthanki kebab Ugthanki kebab 3 Uncommon (~4.5/128) 2,313
Tuna potato Tuna potato 3 Uncommon (~3.5/128) 3,309
Sanfew serum(4) Sanfew serum(4) 2 Uncommon (~3/128) 41,996
Prayer potion(4) Prayer potion(4) 2 Rare (~1/128) 19,584

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) 90
Bullseye lantern Bullseye lantern (unlit) 1 Uncommon (~4/128) 886
Fire talisman Fire talisman 1 Uncommon (~4/128) 2,774
Gem drop table Gem drop table 1 Uncommon (~3/128) Not sold
Dragonstone ring Dragonstone ring 1 Uncommon (~1.5/128) 11,919
Crystal key Crystal key 1 Rare (1/128)[3] 21,375

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]
638
Uncut emerald Uncut emerald 1 Rare
(1/341.33; 1/256)[G 1]
802
Uncut ruby Uncut ruby 1 Rare
(1/682.67; 1/512)[G 1]
1,430
Nature talisman Nature talisman 1 Very rare
(1/1,820.44; 1/1,365.33)[G 1]
989
Uncut diamond Uncut diamond 1 Very rare
(1/2,730.67; 1/2,048)[G 1]
2,868
Rune javelin Rune javelin 5 Very rare
(1/5,461.33; 1/4,096)[G 1]
800
Loop half of key Loop half of key 1 Very rare
(1/5,461.33; 1/4,096)[G 1]
8,990
Tooth half of key Tooth half of key 1 Very rare
(1/5,461.33; 1/4,096)[G 1]
11,949
Rune spear Rune spear 1 Very rare
(1/87,381.33; 1/7,680)[G 1]
12,095
Shield left half Shield left half 1 Very rare
(1/174,762.67; 1/15,360)[G 1]
65,678
Dragon spear Dragon spear 1 Very rare
(1/233,016.89; 1/20,480)[G 1]
37,797
  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