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.
Thermonuclear smoke devil
Thermonuclear smoke devil
Release date 10 April 2014 (Update)
Members? Yes
Combat level 301
Always drops Ashes
Combat info
Hitpoints 240
Aggressive No
Poisonous No
Max hit 8
Weakness Slash
Attack Styles
Magical ranged
Slayer-icon Slayer info
Slayer level 93
Slayer XP 240
Category Boss, Smoke devil
Assigned by
Nieve chatheadDuradel chathead
Combat-icon Combat stats
Attack-icon Strength-icon Defence-icon Ranged-icon Magic-icon
230 220 360 310 1
Attack-icon Aggressive stats
White dagger White scimitar White warhammer Magic-icon Ranged-icon
+0 +0 +0 +0 +0
Defence-icon Defensive stats
White dagger White scimitar White warhammer Magic-icon Ranged-icon
+11 +4 +9 +800 +900
Other bonuses Immunities
Strength-icon RangedStrength-icon Attack-icon Poison hitsplat Venom hitsplat
+0 +0 +0 Immune Immune
Attack speed
Monster attack speed 8

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.

This monster 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).


100% dropsEdit

Item Quantity Rarity GE market price
Ashes Ashes 1 Always 52


Item Quantity Rarity GE market price
Rune dagger Rune dagger 1 Common 4,542
Rune scimitar Rune scimitar 1 Common 15,166
Rune battleaxe Rune battleaxe 1 Common 24,644
Mystic air staff Mystic air staff 1 Uncommon 25,220
Mystic fire staff Mystic fire staff 1 Uncommon 25,243
Dragon scimitar Dragon scimitar 1 Rare 59,781
Ancient staff Ancient staff 1 Rare (1/129) 99,158
Smoke battlestaff Smoke battlestaff 1 Rare (1/512) 2,828,999


Item Quantity Rarity GE market price
Red d'hide body Red d'hide body 1 Uncommon 6,282
Rune chainbody Rune chainbody 1 Uncommon 29,632
Occult necklace Occult necklace 1 Rare (1/350) 581,249
Dragon chainbody Dragon chainbody 1 Very rare (1/2,000) 421,901


Item Quantity Rarity GE market price
Smoke rune Smoke rune 100 Common 4,100
Air rune Air rune 300 Common 1,500
Soul rune Soul rune 60 Common 8,820
Rune knife (p) Rune knife(p++) 50 Uncommon 51,300
Rune arrow 5 Rune arrow 100 Uncommon 7,400


Item Quantity Rarity GE market price
Herb seed 5 Snapdragon seed 2 Uncommon 96,464
Magic seed 5 Magic seed 1 Rare 221,021


Item Quantity Rarity GE market price
Pure essence Pure essence 300 (noted) Common 1,200
Desert goat horn Desert goat horn 50 (noted) Uncommon 4,500
Molten glass Molten glass 100 (noted) Uncommon 14,400
Mithril bar Mithril bar 20 (noted) Uncommon 14,820
Grimy toadflax Grimy toadflax 15 (noted) Uncommon 40,035
Coal Coal 150 (noted) Uncommon 27,150
Gold ore Gold ore 200 (noted) Uncommon 68,200
Onyx bolt tips 5 Onyx bolt tips 12 Uncommon 100,920
Grapes Grapes 100 (noted) Rare 12,500
Diamond Diamond 10 (noted) Rare 20,000
Magic logs Magic logs 20 (noted) Rare 21,460


Item Quantity Rarity GE market price
Ugthanki kebab Ugthanki kebab 3 Common 1,737
Tuna potato Tuna potato 3 Uncommon 2,709
Prayer potion(4) Prayer potion(4) 2 Uncommon 18,668
Sanfew serum(4) Sanfew serum(4) 2 Uncommon 64,006


Item Quantity Rarity GE market price
Coins 10000 Coins 10,000–19,996 Common Not sold
Tinderbox Tinderbox 1 Common 56
File:Bullseye lantern (unlit).png Bullseye lantern (unlit) 1 Uncommon 1,066
Fire talisman Fire talisman 1 Uncommon 1,892
Dragonstone ring Dragonstone ring 1 Rare 11,190
Crystal key Crystal key 1 Rare (1/128) 21,051
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

Rare drop table

In addition to the drops above, this monster also has access to the rare drop table.

Show/hide rare drop table
Item Quantity Rarity GE market price
Coins 1000 Coins 3,000 Common Not sold
Loop half of key Loop half of key 1 Common 5,643
Tooth half of key Tooth half of key 1 Common 14,950
Chaos talisman Chaos talisman 1 Common 234
Uncut sapphire Uncut sapphire 1 Common 744
Uncut emerald Uncut emerald 1 Uncommon 751
Uncut ruby Uncut ruby 1 Uncommon 1,513
Nature talisman Nature talisman 1 Uncommon 630
Steel arrow 5 Steel arrow 150 Uncommon 5,550
Rune arrow 5 Rune arrow 42 Uncommon 3,108
Rune javelin Rune javelin 5 Uncommon 690
Adamant javelin Adamant javelin 20 Uncommon 1,040
Runite bar Runite bar 1 Uncommon 12,461
Nature rune Nature rune 67 Uncommon 13,534
Law rune Law rune 45 Uncommon 9,000
Death rune Death rune 45 Uncommon 11,205
Rune battleaxe Rune battleaxe 1 Uncommon 24,644
Rune 2h sword Rune 2h sword 1 Uncommon 37,974
Rune sq shield Rune sq shield 1 Uncommon 22,645
Silver ore Silver ore 100 (noted) Uncommon 7,700
Dragonstone Dragonstone 1 Uncommon 11,330
Uncut diamond Uncut diamond 1 Rare 3,056
Dragon med helm Dragon med helm 1 Rare 59,100
Rune kiteshield Rune kiteshield 1 Rare 32,226
Rune spear Rune spear 1 Rare 12,042
Shield left half Shield left half 1 Rare 65,255
Dragon spear Dragon spear 1 Rare 38,691