Old School RuneScape uses the British convention for floor numbering: Ground floor, first floor, etc.
This article is about the normal variant. For the stronger variant, see Deviant spectre. However, for the superior variant, see Abhorrent spectre.
Aberrant spectre icon

Aberrant spectres are Slayer monsters that require level 60 Slayer to kill. They frequently drop large amounts of grimy herbs and herb seeds. Because of this, bringing a herb sack and seed box when killing them is recommended.

Deviant spectres, found in the Catacombs of Kourend, can be killed in their place if you are assigned aberrant spectres.


Strengths and weaknesses

A nose peg or slayer helmet is required when fighting aberrant spectres; if you do not, their attacks will always hit and drain your combat stats extremely quickly.

They attack using Magic, so the Protect from Magic prayer can be helpful, or players can wear dragonhide armour. Using a Salve amulet or Salve amulet (e) will give you a large advantage, since they are an undead monster. However, bonuses do not stack with a Slayer helm/black mask. It should also be noted that using Protect from Magic does not counter their stat-reducing abilities. 

Note: It is possible to use a dwarf multicannon inside the Stronghold Slayer Cave. This is recommended for fastest Slayer experience.

It is also possible to safe-spot one of the aberrant spectres by using the south-eastern corner of the wall of the staircase-room, but only with a long-ranged attack. This only works with Ranged or Magic, as there has to be at least six spaces between the player and the aberrant spectre before the player gets out of the spectre's attack range. It's not possible to use halberds or thrown weapons such as throwing knives and throwing axes without getting hit as their attack range is not long enough.

It's possible to safe-spot in the Slayer Tower by standing on the brick pile just west of the Agility chain shortcut and pulling spectres just in front of the suit of armour from the room south of the shortcut. A crossbow's rapid attack style will be able to target aberrant spectres from this distance, making it a very useful spot.



There is a ~1/6 chance of receiving an item from the rare allotment seed drop table.
Item Quantity Rarity GE market price
Herb seed 5 Toadflax seed 1 Uncommon (~27/750) 917
Herb seed 5 Irit seed 1 Uncommon (~18/750) 48
Belladonna seed 5 Belladonna seed 1 Uncommon (~18/750) 39
Poison ivy seed 5 Poison ivy seed 1 Uncommon (~13/750) 20
Cactus seed 5 Cactus seed 1 Uncommon (~12/750) 52
Herb seed 5 Avantoe seed 1 Uncommon (~12/750) 709
Herb seed 5 Kwuarm seed 1 Uncommon (~9/750) 371
Herb seed 5 Snapdragon seed 1 Rare (~6/750) 85,782
Herb seed 5 Cadantine seed 1 Rare (~4/750) 981
Herb seed 5 Lantadyme seed 1 Rare (~3/750) 1,689
Herb seed 5 Dwarf weed seed 1 Rare (~2/750) 386
Herb seed 5 Torstol seed 1 Rare (1/750)[1] 56,851


Up to three herbs are dropped when the herb table is rolled.

Item Quantity Rarity GE market price
Grimy guam leaf Grimy guam leaf 1–3 Common 10–30
Grimy marrentill Grimy marrentill 1–3 Common 11–33
Grimy tarromin Grimy tarromin 1–3 Common 110–330
Grimy harralander Grimy harralander 1–3 Common 550–1,650
Grimy ranarr weed Grimy ranarr weed 1–3 Common 10,305–30,915
Grimy irit leaf Grimy irit leaf 1–3 Common 845–2,535
Grimy avantoe Grimy avantoe 1–3 Common 1,702–5,106
Grimy kwuarm Grimy kwuarm 1–3 Common 1,312–3,936
Grimy cadantine Grimy cadantine 1–3 Uncommon 1,473–4,419
Grimy lantadyme Grimy lantadyme 1–3 Uncommon 1,383–4,149
Grimy dwarf weed Grimy dwarf weed 1–3 Uncommon 512–1,536
Grimy snapdragon Grimy snapdragon 1–2 Very rare 12,372–24,744

Weapons and armour

Item Quantity Rarity GE market price
Steel axe Steel axe 1 Uncommon 52
Mithril kiteshield Mithril kiteshield 1 Uncommon 1,003
Lava battlestaff Lava battlestaff 1 Uncommon 9,465
Adamant platelegs Adamant platelegs 1 Uncommon 3,514
Rune full helm Rune full helm 1 Uncommon 20,583
Mystic robe bottom (dark) Mystic robe bottom (dark) 1 Rare (1/512) 47,974

Other drops

Item Quantity Rarity GE market price
Coins 250 Coins 460 Uncommon Not sold
Gem drop table Gem drop table 1 Uncommon (5/128)[2] Not sold
Clue scroll (hard) Clue scroll (hard) 1 Rare (1/128) Not sold

Gem drop table

In addition to the drops above, this monster has a 5/128 chance to access the gem drop table.

Show/hide gem drop table
Item Quantity Rarity GE market price
Uncut sapphire Uncut sapphire 1 Rare
(1/102.4; 1/76.8)[G 1]
Uncut emerald Uncut emerald 1 Rare
(1/204.8; 1/153.6)[G 1]
Uncut ruby Uncut ruby 1 Rare
(1/409.6; 1/307.2)[G 1]
Chaos talisman Chaos talisman 1 Very rare
(1/1,092.27; 1/819.2)[G 1]
Uncut diamond Uncut diamond 1 Very rare
(1/1,638.4; 1/1,228.8)[G 1]
Rune javelin Rune javelin 5 Very rare
(1/3,276.8; 1/2,457.6)[G 1]
Loop half of key Loop half of key 1 Very rare
(1/3,276.8; 1/2,457.6)[G 1]
Tooth half of key Tooth half of key 1 Very rare
(1/3,276.8; 1/2,457.6)[G 1]
Rune spear Rune spear 1 Very rare
(1/52,428.8; 1/4,608)[G 1]
Shield left half Shield left half 1 Very rare
(1/104,857.6; 1/9,216)[G 1]
Dragon spear Dragon spear 1 Very rare
(1/139,810.13; 1/12,288)[G 1]
  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 The drop rate is increased when wearing a Ring of wealth.


  1. Twitter - Aberrant spectre drop rate

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