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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 30

Weapons

Item Quantity Rarity GE market price
Rune dagger Rune dagger 1 Uncommon (~5/128) 4,509
Rune battleaxe Rune battleaxe 1 Uncommon (~3/128) 24,573
Mystic air staff Mystic air staff 1 Uncommon (~3/128) 25,199
Mystic fire staff Mystic fire staff 1 Uncommon (~3/128) 25,224
Rune scimitar Rune scimitar 1 Uncommon (~2/128) 15,026
Dragon scimitar Dragon scimitar 1 Rare (~1/128) 59,626
Ancient staff Ancient staff 1 Rare (1/129)[2] 81,879
Smoke battlestaff Smoke battlestaff 1 Rare (1/512) 3,280,636

Armour

Item Quantity Rarity GE market price
Red d'hide body Red d'hide body 1 Uncommon (~3.5/128) 6,244
Rune chainbody Rune chainbody 1 Uncommon (~3/128) 29,593
Occult necklace Occult necklace 1 Rare (1/350) 908,511
Dragon chainbody Dragon chainbody 1 Very rare (1/2,000) 789,366

Runes/Ammunition

Item Quantity Rarity GE market price
Smoke rune Smoke rune 100 Common (~9/128) 8,200
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) 9,100
Rune knife (p) Rune knife(p++) 50 Rare (~0.5/128) 23,900

Seeds

Item Quantity Rarity GE market price
Herb seed 5 Snapdragon seed 2 Uncommon (~2/128) 101,692
Magic seed 5 Magic seed 1 Rare (~1/128) 127,941

Materials

Item Quantity Rarity GE market price
Pure essence Pure essence 300 (noted) Common (~5/128) 600
Desert goat horn Desert goat horn 50 (noted) Uncommon (~2/128) 29,550
Molten glass Molten glass 100 (noted) Uncommon (~2/128) 15,100
Mithril bar Mithril bar 20 (noted) Uncommon (~2/128) 13,140
Grimy toadflax Grimy toadflax 15 (noted) Uncommon (~2/128) 23,685
Coal Coal 150 (noted) Uncommon (~2/128) 20,700
Onyx bolt tips 5 Onyx bolt tips 12 Uncommon (~2/128) 100,128
Magic logs Magic logs 20 (noted) Uncommon (~2/128) 21,460
Gold ore Gold ore 200 (noted) Uncommon (~2/128) 71,800
Grapes Grapes 100 (noted) Rare (~1/128) 11,500
Diamond Diamond 10 (noted) Rare (~1/128) 19,800

Consumables

Item Quantity Rarity GE market price
Ugthanki kebab Ugthanki kebab 3 Uncommon (~4.5/128) 2,241
Tuna potato Tuna potato 3 Uncommon (~3.5/128) 3,654
Sanfew serum(4) Sanfew serum(4) 2 Uncommon (~3/128) 44,532
Prayer potion(4) Prayer potion(4) 2 Rare (~1/128) 17,236

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) 84
Bullseye lantern Bullseye lantern (unlit) 1 Uncommon (~4/128) 789
Fire talisman Fire talisman 1 Uncommon (~4/128) 3,537
Gem drop table Gem drop table 1 Uncommon (~3/128) Not sold
Dragonstone ring Dragonstone ring 1 Uncommon (~1.5/128) 12,185
Crystal key Crystal key 1 Rare (1/128)[3] 25,663

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]
654
Uncut emerald Uncut emerald 1 Rare
(1/341.33; 1/256)[G 1]
818
Uncut ruby Uncut ruby 1 Rare
(1/682.67; 1/512)[G 1]
1,486
Nature talisman Nature talisman 1 Very rare
(1/1,820.44; 1/1,365.33)[G 1]
685
Uncut diamond Uncut diamond 1 Very rare
(1/2,730.67; 1/2,048)[G 1]
3,069
Rune javelin Rune javelin 5 Very rare
(1/5,461.33; 1/4,096)[G 1]
835
Loop half of key Loop half of key 1 Very rare
(1/5,461.33; 1/4,096)[G 1]
13,120
Tooth half of key Tooth half of key 1 Very rare
(1/5,461.33; 1/4,096)[G 1]
11,882
Rune spear Rune spear 1 Very rare
(1/87,381.33; 1/7,680)[G 1]
11,994
Shield left half Shield left half 1 Very rare
(1/174,762.67; 1/15,360)[G 1]
65,388
Dragon spear Dragon spear 1 Very rare
(1/233,016.89; 1/20,480)[G 1]
37,303
  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