Abyssal demon

Abyssal demons are located at the top of the Morytania Slayer Tower and in the depths of the dark Abyssal Area (which is not the Abyss). Only players with level 85 Slayer can fight these demons and obtain their drops.

Abyssal demons are the ultimate goal of many slayers, because of the rare-but-valuable Abyssal whips they can drop. The whip is regarded by many as one of the best weapons in RuneScape, so it is always in demand and sells well on the Grand Exchange. Slaying abyssal demons can therefore be very profitable.

Higher levelled players may find it easy to stay for long periods of time, using a Saradomin godsword, a healing familiar (e.g. bunyip), or a combination of the two. These methods require minimal food usage and the occasional lobster drop can sustain most players for hours while healing with the above methods.

If players bring an Abyssal demon head to the Taxidermist in Canifis, she will remark "It's still glowing" and the effect is preservable with magic, despite that neither the living nor stuffed versions of the Abyssal Demon glow.

The Abyssal demon was the only Slayer monster that did not receive a graphical update on or about the time the Smoking Kills quest was released in 2008.

Strengths and weaknesses
As the Abyssal demon is indeed a demon, it is affected by the powers of Silverlight and Darklight. Abyssal demons hit very low considering their level, with a maximum hit of only 8 damage. This makes them very good targets when using Guthan's or Dharok's sets, because of the low risk of dying.

Abyssal demons have the unusual ability of teleporting around the room. They look a lot like shifters, who also teleport during battle.

100% drop

 * Ashes

Charms

 * Blue (least common among the four charms)
 * Crimson (most common)
 * Green (third most common)
 * Gold (second most common)

Weapons

 * Abyssal whip (very rare)
 * Dragon spear (very rare)
 * Rune battleaxe (very rare)
 * Rune 2h sword (very rare)
 * Rune spear (very rare)
 * Black sword (common)
 * Black hatchet (common)
 * Steel battleaxe (common)
 * 150 Steel arrows (very rare)
 * 20 Adamant javelin (very rare)
 * 5 Rune javelin (very rare)
 * 42 Rune arrows (very rare)

Armour

 * Dragon medium helmet (very rare)
 * Rune chainbody (uncommon)
 * Rune medium helmet (uncommon)
 * Rune kiteshield (very rare)
 * Rune square shield (very rare)
 * Mithril kiteshield (rare)

Runes

 * 50 Air runes (common)
 * 7 Blood runes (common)
 * 10 Chaos runes (common)
 * 67 Nature runes (very rare)
 * 3 or 45 Law runes (3 is uncommon, 45 is rare)
 * 45 Death runes (very rare)

Other

 * Coins (common)
 * Lobster (uncommon)
 * 60 noted pure essence (common)
 * Level 3 Clue Scroll (rare)
 * Dragon shield left half (very rare)
 * Half key (rare)
 * Cosmic talisman (rare)
 * Nature talisman (rare)
 * Chaos talisman (rare)
 * Defence potion (3) (common)
 * Gems (up to dragonstone)
 * Dragonstone (very rare)
 * Herbs (up to dwarf weed)
 * 100 noted silver ore (very rare)
 * Runite bar (very rare)
 * Adamantite bar (common)
 * Abyssal demon head (extremely rare)