Thermonuclear Smoke Devil (Echo)

Thermonuclear Smoke Devil (Echo)
Combat level								301
Tier								115
Boss								Yes
Species								None
Combat info
Max hit								53
Aggressive								No
Attack style								Ranged
Attack speed								4 ticks (2.4 seconds)
Slayer info
Assigned by								Nixite
Task Size								75 - 100 (non-boss) 3 - 35 (boss)
Combat levels
5900				483				86				898				483				483
Combat stats
+760				+328				+760				+328				+760				+328
Melee defence
+836								+836								+836
Other defences
+836												+836
Weaknesses
PoweredStaff
50%

This boss has a strategy guide

Strategy details for this boss can be found in the Strategies page.

Thermonuclear Smoke Devil (Echo) does not have a Slayer requirement to kill.

Drops

Always (always)

Image	Item	Quantity
	Coal dust	100 - 200
	Superior big bones	4

Boss drops (common/uncommon) (8/105)

Image	Item	Quantity
	Coins	115,000 - 575,000
	Prayer potion(4)	25 - 50
	Super restore(4)	10 - 15
	Super combat potion(4)	10 - 15
	Noxifer	21 - 35
	Buchu leaf	21 - 35
	Cicely	21 - 35
	Major combat XP token	1
	Major skilling XP token	1
	Minor combat XP token	2
	Minor skilling XP token	2
	Upgrade gems	575 - 1,725
	Boss token	80 - 230

Boss drops (rare/super-rare)

Image	Item	Quantity
	Dragon bones	250 - 1,000
	Coins	3,450,000 - 5,750,000
	Onyx	1 - 3
	Zenyte	1
	Prayer enhance (+)(4)	10 - 30
	Overload (+)(4)	10 - 30
	Superior dragon bones	120 - 350
	Major combat XP token	5
	Major skilling XP token	5
	Superior bones	350 - 750
	Superior big bones	250 - 400
	$10 Bond	1
	$5 Bond	1
	Talent respec token	1

Rare

Image	Item	Quantity
	Mystic smoke staff	1
	Quadrant head	1
	Occult gem	1

Regular (always)

Image	Item	Quantity
	Prayer potion(1)	6
	Cooked karambwan	6
	Infinity cloth	10

Pet (1/500)

Image	Pet
	Echo Thermy

Achievements

Name	Description	Tier	Rewards
Cinder Resonance	Defeat the Echo Thermonuclear Smoke Devil for the first time. The fight revolves around three mechanics: dancing between the 12 resonance tiles while flicking the matching prayer for each orb, running to the arena edge during the special-attack charge to reduce damage, and — during that charge — striking the boss with the style you want it to protect against for the next cycle.	Starter	500,000x Coins
Smoke Stalker	Defeat the Echo Thermonuclear Smoke Devil 10 times.	Starter	500,000x Coins, 1x 1k XP lamp
Tile Dancer	Defeat the Echo Thermonuclear Smoke Devil 50 times.	Apprentice	1,250,000x Coins, 1x 2k XP lamp
Resonance Master	Defeat the Echo Thermonuclear Smoke Devil 150 times.	Adept	2,500,000x Coins, 1x 10k XP lamp
Perfect Flicks	Defeat the Echo Thermonuclear Smoke Devil without missing an orb protection prayer — Protect from Missiles for red orbs, Protect from Magic for blue.	Expert	5,000,000x Coins, 1x 10k XP lamp
Safe Distance	Defeat the Echo Thermonuclear Smoke Devil without taking more than 30 damage from any single special attack. When the headbar starts filling, run to the edge of the arena — damage scales inversely with distance.	Expert	5,000,000x Coins, 1x 10k XP lamp
Never Off the Ring	Defeat the Echo Thermonuclear Smoke Devil with every orb landing while you're standing on the resonance ring. Depleted ring tiles still count as being on the ring.	Master	5,000,000x Coins, 1x 10k XP lamp
Style Swap Trilogy	Defeat the Echo Thermonuclear Smoke Devil while striking the boss with all three combat styles (melee, ranged, magic) during its special-charge windows in a single run. Each hit during a charge window sets the boss's next overhead prayer to that style — land at least one hit with each style before the boss dies.	Master	5,000,000x Coins, 1x 10k XP lamp
Tempo Strike	Defeat the Echo Thermonuclear Smoke Devil in under 3 minutes of boss-fight time.	Master	5,000,000x Coins, 1x 10k XP lamp