This article is about the Slayer monster. For the boss, see Thermonuclear smoke devil.
The smoke devil is a mutated version of a Dust devil, found at the Stronghold Slayer Cave. These require a minimum of 93 Slayer to kill. A Slayer helmet (i) or a Facemask is required to kill these. This monster, along with its boss variant, are the only monsters to drop the Occult Necklace.
As with all monsters in the Stronghold Slayer Cave, they can only be attacked if you have them as a Slayer assignment.
Drops
100% drops
Item Quantity Rarity GE market price 
Ashes 1 Always 72
Runes/Ammunition
Item Quantity Rarity GE market price
Fire rune 37; 150 Common 185–750
Smoke rune 10–40 Common 710–2,840
Air rune 37 Uncommon 185
Soul rune 10 Uncommon 1,460
Rune arrow 24 Uncommon 1,680
Runite bolts 15 Uncommon 6,045
Weapons/Armour
Item Quantity Rarity GE market price
Adamant battleaxe 1 Common 2,157
Mithril plateskirt 1 Common 1,272
Fire battlestaff 1 Uncommon 8,982
Rune dagger 1 Uncommon 4,391
Air battlestaff 1 Uncommon 8,948
Black d'hide vamb 1 Uncommon 2,362
Red d'hide body 1 Uncommon 5,932
Rune full helm 1 Uncommon 20,588
Rune chainbody 1 Uncommon 29,475
Rune 2h sword 1 Rare 37,758
Occult necklace 1 Rare 496,473
Herbs
Template:HerbsDropped
Item Quantity Rarity GE market price
Guam leaf 1 Common 26
Marrentill 1 Common 24
Tarromin 1 Common 153
Harralander 1 Common 706
Irit leaf 1 Uncommon 789
Avantoe 1 Uncommon 1,848
Kwuarm 1 Uncommon 1,195
Cadantine 1 Uncommon 1,339
Dwarf weed 1 Uncommon 427
Ranarr weed 1 Rare 7,682
Lantadyme 1 Rare 1,419
Other
Item Quantity Rarity GE market price
Coins 80–800 Common Error
Ugthanki kebab 1–3 Common 814–2,442
Shark 1 Common 921
Crossbow string 1 Uncommon 179
Steel bar 2 Uncommon 946
Magic logs 5 (noted) Uncommon 5,450
Coal 15 (noted) Uncommon 2,430
Adamantite bar 1 Rare 1,904
Clue scroll (hard) 1 Rare Error
Trivia
- In RuneScape 3, Smoke devils are familiars that require a Summoning level of 61 to use.
