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Demon bosses are encountered as part of the Demon Flash Mobs Distraction and Diversion. They serve as the main boss of the activity, although only one appears within each mob. It is protected by six imp heralds, four lesser demons and two black demons; the latter two it will devour to recover lost health. Its name and, to some degree, its appearance is random, but the prefix and suffix of its name will affect its abilities.
Attempting to use prayers excluding Protect Item while fighting the demon causes it to deal extra damage when hitting you. Using Blood spells will also heal the demon.
The boss of a demon flash mob will have a prefix to his name. This prefix determines the attacks the boss will use mainly, or what it is particularly good at.
Accurate melee attacks
High hitting attacks
Very high defence
User of magic
The boss of a demon flash mob will also have a suffix to his name. This suffix determines what special abilities this boss demon has.
Fire-based damage over time effect (deals magic damage, similar to Combust, but cannot be removed by Freedom)
Poison area of effect (everyone within 3 squares of the boss is inflicted with poison that can deal over 1000 damage)
Ice area of effect (everyone within 3 squares of the boss is stunned for six seconds)
Stun (lasts for six seconds at a time)
Fire area of effect (low damaging variant of Combust)
Drains stats of nearby players
Poison damage over time (extremely powerful poison, dealing from 600-1100 damage)
Bleeding damage over time (low damaging variant of Dismember)
Melee attacks hit everyone within 3 squares of the boss
Binds nearby players and reduces adrenaline gain of nearby players
Main names Edit
A boss demon in a flash mob will have a main name, which can either be aligned to
Zaros or Zamorak. This name doesn't have any further use.
Janus (Double faced)
The silent/The peaceful
In order to receive a drop, the player must deal at least 500 damage to the demon boss in a single hit; once this condition is met a notification will be given to the player. The player must also stay in combat with the boss until it dies to be eligible for the rewards. If the player gets out of combat by any means, they will lose the ability to get the drop from the demon, and must deal 500 damage in a single hit again to be eligible for a drop.
Fighting a demon boss in the Wilderness will give different drops and a drastically increased drop rate for the demon slayer equipment. Demon slayer equipment will always be included as a secondary drop, similar to clue scrolls and effigies.
100% Drop Edit
Charm drop numbers No charm 20–24% 3–5% 0–0.3% 2–4% 25–29% Represents a 90% confidence range. Based on a sample of 1,061 kills. 3 charms are dropped at a time. Please add to the log. (Only if 50 or more creatures are killed)
Herbs and Seeds Edit
GE market price
Grimy irit  14; 30 Uncommon 27,916–59,820
Grimy avantoe  8; 20 Uncommon 31,800–79,500
Grimy lantadyme  5; 10 Uncommon 30,555–61,110
Grimy torstol 3 Uncommon 14,841
Lantadyme seed  2; 3 Uncommon 19,268–28,902
Torstol seed  1 Rare 8,522
Ores, bars and gems Edit
GE market price
Coins  20,000; 45,000 Uncommon Not sold
Demon claw 4–8 Uncommon 17,288–34,576
Infernal ashes  30; 40; 60 Uncommon 52,440–104,880
Shield left half 1 Uncommon 64,438
Green dragonhide  30 Uncommon 47,670
Red dragonhide  15 Uncommon 42,225
Black dragonhide  10 Uncommon 35,520
Demonic title scroll  1 Rare Not sold
Universal drops Edit
Universal drops are dropped by nearly every monster outside of Daemonheim.
These drops are dropped alongside main drops.
GE market price
Key token 1 Rare Not sold
^ The amount of 5 is dropped in the Wilderness.
a b c d e f g h i j k Acts as a normal drop so it's only given to the player that dealt most damage.
^ The amount of 30 is dropped in the Wilderness.
^ The amount of 20 is dropped in the Wilderness.
^ The amount of 10 is dropped in the Wilderness.
^ The amount of 3 is dropped in the Wilderness.
^ 45,000 is dropped in the Wilderness and 20,000 outside
^ The amount of 60 is only dropped in the Wilderness.
^ The exact scroll dropped will always be one of the titles in the demon boss's name.
The demon boss had 480,000 life points before they were lowered on 2 February, 2015. It also had a defence level of 132.