Monstrous basilisk

Monstrous basilisk
Released	15 September 2016 (Update)
Members	Yes
Combat level	135
Size	3x3
Examine	Let's hope I have some phoenix tears.
League region	Fremennik✓
Combat info
XP bonus	+0%
Max hit	11
Aggressive	No
Poisonous	No
Attack style	Slash
Attack speed	4 ticks (2.4 seconds)
Slayer info
Slayer level	40
Slayer XP	1,700 xp
Category	Basilisks
Assigned by	File:Konar chathead.png
Combat stats
Aggressive stats
Melee defence
Magic defence
+35	No elemental weakness
Ranged defence
Immunities
Poison	Immune
Venom	Immune
	Open in DPS calculator
Advanced data
Monster ID	7395

This article has a Slayer task guide here.

Information comparing locations for Slayer tasks will be on this page

The monstrous basilisk is a superior variant of the basilisk. It has a chance of spawning after purchasing the unlock Bigger and Badder for 150 Slayer reward points from any Slayer master.

Similar to their lower-level counterparts, a mirror shield or V's shield is required to safely engage them, as otherwise the player will take rapid damage and have their stats drained.

Drops

In addition to 100% drops and tertiary drops, superior slayer monsters will always roll 3 additional items, of which only 1 roll may be from the superior unique table. The other rolls are performed on the regular counterpart's table; their displayed drop chances represent a single roll.

Drop rates estimated based on 48,470 samples from the Drop Rate Project, unless otherwise cited.

100%

	Item	Quantity	Rarity	Price	High Alch
	Bones	1	Always	113	0
Brimstone key.png: Monstrous basilisk drops Brimstone key with rarity Always in quantity 1	Brimstone key	1	Always^{[d 1]}	Not sold	N/A

^ Brimstone keys are only dropped if killed on a Slayer task given by Konar quo Maten.

Weapons and armour

Item	Quantity	Rarity	Price	High Alch
Mithril axe	1	3 × 3/128	113	312
Mithril spear	1	3 × 2/128	335	507
Steel battleaxe	1	3 × 3/128	151	390
Adamant full helm	1	3 × 1/128	1,767	2,112
Mithril kiteshield	1	3 × 1/128	1,053	1,326
Rune dagger	1	3 × 1/128	4,382	4,800
Mystic hat (light)	1	3 × 1/512	8,723	9,000

Runes

Item	Quantity	Rarity	Price	High Alch
Water rune	75	3 × 8/128	375	150
Nature rune	15	3 × 5/128	1,605	1,620
Law rune	3	3 × 3/128	381	432
Nature rune	37	3 × 1/128	3,959	3,996

Herbs

There is a 35/128 chance of rolling the herb drop table.

Item	Quantity	Rarity	Price	High Alch
Grimy guam leaf	1	3 × 1/14.6	326	7
Grimy marrentill	1	3 × 1/19.5	398	8
Grimy tarromin	1	3 × 1/26	379	9
Grimy harralander	1	3 × 1/33.4	676	9
Grimy ranarr weed	1	3 × 1/42.6	6,709	18
Grimy irit leaf	1	3 × 1/58.5	1,472	10
Grimy avantoe	1	3 × 1/78	3,263	10
Grimy kwuarm	1	3 × 1/93.6	3,574	12
Grimy cadantine	1	3 × 1/117	2,987	13
Grimy lantadyme	1	3 × 1/156	1,861	13
Grimy dwarf weed	1	3 × 1/156	2,036	14

Materials

	Item	Quantity	Rarity	Price	High Alch
	Adamantite ore	1	3 × 3/128	1,069	240

Coins

The overall chance of rolling a coin drop is 57/128 with an average value of 102.

Item	Quantity	Rarity	Price	High Alch
Coins	44	3 × 29/128	44	44
Coins	200	3 × 17/128	200	200
Coins	132	3 × 5/128	132	132
Coins	11	3 × 5/128	11	11
Coins	440	3 × 1/128	440	440

Gem drop table

There is a 5/128 chance of rolling the gem drop table.

Item	Quantity	Rarity	Price	High Alch
Nothing	N/A	3 × 1/51.29; Never^{[d 1]}	N/A	N/A
Uncut sapphire	1	3 × 1/102.4; 1/52^{[d 2]}	238	15
Uncut emerald	1	3 × 1/204.8; 1/104^{[d 2]}	463	30
Uncut ruby	1	3 × 1/409.6; 1/208^{[d 2]}	988	60
Chaos talisman	1	3 × 1/1,092.27; 1/554.67^{[d 2]}	309	2
Uncut diamond	1	3 × 1/1,638.4; 1/832^{[d 2]}	2,142	120
Loop half of key	1	3 × 1/3,276.8; 1/1,664^{[d 2]}	11,919	60
Tooth half of key	1	3 × 1/3,276.8; 1/1,664^{[d 2]}	11,925	60
Rune javelin	5	3 × 1/3,276.8; 1/1,664^{[d 2]}	950	1,200
Rune spear	1	3 × 1/52,428.8; 1/3,120^{[d 2]}^{[d 3]}	11,871	12,480
Shield left half	1	3 × 1/104,857.6; 1/6,240^{[d 2]}^{[d 3]}	65,394	66,000
Dragon spear	1	3 × 1/139,810.13; 1/8,320^{[d 2]}^{[d 3]}	38,854	37,440

^ The "nothing" drop is removed while wearing a ring of wealth.
^ ^2.00 ^2.01 ^2.02 ^2.03 ^2.04 ^2.05 ^2.06 ^2.07 ^2.08 ^2.09 ^2.10 The drop rate is increased while wearing a ring of wealth due to the "nothing" drop being removed.
^ ^3.0 ^3.1 ^3.2 Only dropped if Legends' Quest has been finished; if not, a talisman is dropped instead.

Tertiary

	Item	Quantity	Rarity	Price	High Alch
	Basilisk bone	1	1/4^{[d 1]}	Not sold	N/A
	Basilisk head	1	1/2,000	Not sold	2,400

^ Basilisks bone are only dropped during Rag and Bone Man II.

Superior Slayer tertiary

The chance to spawn a superior creature is 1/200.^{[d 1]}

Item	Quantity	Rarity	Price	High Alch
Mist battlestaff	1	1/293	52,893	9,300
Dust battlestaff	1	1/293	16,868	9,300
Eternal gem	1	1/1,024	8,682,403	5,700
Imbued heart	1	1/1,024	105,502,562	300,000

^ The superior creature spawn rate increases to 1/150 after unlocking the elite Combat Achievements rewards tier.

Changes

Date	Changes
[[{{#explode:8 May 2024\| \|0}} {{#explode:8 May 2024\| \|1}}]] [[{{#explode:8 May 2024\| \|2}}]] (update)	Superior slayer monsters are now guaranteed to drop brimstone keys when on a task from Konar.
[[{{#explode:23 February 2017\| \|0}} {{#explode:23 February 2017\| \|1}}]] [[{{#explode:23 February 2017\| \|2}}]] (update \| poll)	The monstrous basilisk was given a graphical update to be more distinguishable from their regular variant.

Gallery (historical)


15 September 2016 ÃƒÂ¢Ã¢â€šÂ¬Ã¢â‚¬Å“ 23 February 2017	23 February 2017 ÃƒÂ¢Ã¢â€šÂ¬Ã¢â‚¬Å“ present

Trivia

The monster's examine text is a reference to the Harry Potter series, in which phoenix tears are one of the only cures for a basilisk's powerful venom. However, basilisks in RuneScape aren't poisonous.

[1] Brimstone keys are only dropped if killed on a Slayer task given by Konar quo Maten.

[2] The "nothing" drop is removed while wearing a ring of wealth.

[row-3] 2.00 ^2.01 ^2.02 ^2.03 ^2.04 ^2.05 ^2.06 ^2.07 ^2.08 ^2.09 ^2.10 The drop rate is increased while wearing a ring of wealth due to the "nothing" drop being removed.

[rowm-4] 3.0 ^3.1 ^3.2 Only dropped if Legends' Quest has been finished; if not, a talisman is dropped instead.

[5] Basilisks bone are only dropped during Rag and Bone Man II.

[6] The superior creature spawn rate increases to 1/150 after unlocking the elite Combat Achievements rewards tier.

[d 1]

[d 1]

[d 2]

[d 3]

[d 1]

[d 1]

Monstrous basilisk

Contents

Drops