Monstrous basilisk

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Not to be confused with Monstrous Basilisk.

The Monstrous basilisk is a superior variant of the Basilisk. It has a chance of spawning once 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[edit | edit source]

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 kills from the Old School RuneScape Wiki drop log project, unless otherwise cited.

100% drop[edit | edit source]

Item Quantity Rarity Price High Alch
Bones.png: Monstrous basilisk drops Bones with rarity Always in quantity 1Bones1Always520

Superior Unique[edit | edit source]

There is a 1/127.8 chance of rolling the superior slayer unique drop table.

Item Quantity Rarity Price High Alch
Dust battlestaff.png: Monstrous basilisk drops Dust battlestaff with rarity 1/340.8 in quantity 1Dust battlestaff11/340.818,6409,300
Mist battlestaff.png: Monstrous basilisk drops Mist battlestaff with rarity 1/340.8 in quantity 1Mist battlestaff11/340.877,2639,300
Imbued heart.png: Monstrous basilisk drops Imbued heart with rarity 1/1,022.4 in quantity 1Imbued heart11/1,022.421,803,710300,000
Eternal gem.png: Monstrous basilisk drops Eternal gem with rarity 1/1,022.4 in quantity 1Eternal gem11/1,022.46,209,8615,700

Regular Unique[edit | edit source]

Item Quantity Rarity Price High Alch
Mystic hat (light).png: Monstrous basilisk drops Mystic hat (light) with rarity 1/512 in quantity 1Mystic hat (light)11/512[1]8,6659,000

Weapons and armour[edit | edit source]

Item Quantity Rarity Price High Alch
Mithril axe.png: Monstrous basilisk drops Mithril axe with rarity 3/128 in quantity 1Mithril axe13/128119312
Mithril spear.png: Monstrous basilisk drops Mithril spear with rarity 2/128 in quantity 1Mithril spear12/128275507
Steel battleaxe.png: Monstrous basilisk drops Steel battleaxe with rarity 3/128 in quantity 1Steel battleaxe13/128160390
Adamant full helm.png: Monstrous basilisk drops Adamant full helm with rarity 1/128 in quantity 1Adamant full helm11/1281,8542,112
Mithril kiteshield.png: Monstrous basilisk drops Mithril kiteshield with rarity 1/128 in quantity 1Mithril kiteshield11/1289891,326
Rune dagger.png: Monstrous basilisk drops Rune dagger with rarity 1/128 in quantity 1Rune dagger11/1284,4554,800

Runes[edit | edit source]

Item Quantity Rarity Price High Alch
Water rune.png: Monstrous basilisk drops Water rune with rarity 8/128 in quantity 75Water rune758/128300150
Nature rune.png: Monstrous basilisk drops Nature rune with rarity 5/128 in quantity 15Nature rune155/1283,5101,620
Law rune.png: Monstrous basilisk drops Law rune with rarity 3/128 in quantity 3Law rune33/128540432
Nature rune.png: Monstrous basilisk drops Nature rune with rarity 1/128 in quantity 37Nature rune371/1288,6583,996

Herbs[edit | edit source]

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

Item Quantity Rarity Price High Alch
Grimy guam leaf.png: Monstrous basilisk drops Grimy guam leaf with rarity 1/14.6 in quantity 1Grimy guam leaf11/14.6127
Grimy marrentill.png: Monstrous basilisk drops Grimy marrentill with rarity 1/19.5 in quantity 1Grimy marrentill11/19.5128
Grimy tarromin.png: Monstrous basilisk drops Grimy tarromin with rarity 1/26 in quantity 1Grimy tarromin11/261529
Grimy harralander.png: Monstrous basilisk drops Grimy harralander with rarity 1/33.4 in quantity 1Grimy harralander11/33.45939
Grimy ranarr weed.png: Monstrous basilisk drops Grimy ranarr weed with rarity 1/42.6 in quantity 1Grimy ranarr weed11/42.68,06818
Grimy irit leaf.png: Monstrous basilisk drops Grimy irit leaf with rarity 1/58.5 in quantity 1Grimy irit leaf11/58.585710
Grimy avantoe.png: Monstrous basilisk drops Grimy avantoe with rarity 1/78 in quantity 1Grimy avantoe11/781,93610
Grimy kwuarm.png: Monstrous basilisk drops Grimy kwuarm with rarity 1/93.6 in quantity 1Grimy kwuarm11/93.61,29612
Grimy cadantine.png: Monstrous basilisk drops Grimy cadantine with rarity 1/117 in quantity 1Grimy cadantine11/1171,56513
Grimy lantadyme.png: Monstrous basilisk drops Grimy lantadyme with rarity 1/156 in quantity 1Grimy lantadyme11/1561,48913
Grimy dwarf weed.png: Monstrous basilisk drops Grimy dwarf weed with rarity 1/156 in quantity 1Grimy dwarf weed11/15659114

Coins[edit | edit source]

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

Item Quantity Rarity Price High Alch
Coins_25.png: Monstrous basilisk drops Coins with rarity 29/128 in quantity 44Coins4429/1284444
Coins_100.png: Monstrous basilisk drops Coins with rarity 17/128 in quantity 200Coins20017/128200200
Coins_100.png: Monstrous basilisk drops Coins with rarity 5/128 in quantity 132Coins1325/128132132
Coins_5.png: Monstrous basilisk drops Coins with rarity 5/128 in quantity 11Coins115/1281111
Coins_250.png: Monstrous basilisk drops Coins with rarity 1/128 in quantity 440Coins4401/128440440

Other[edit | edit source]

Item Quantity Rarity Price High Alch
Adamantite ore.png: Monstrous basilisk drops Adamantite ore with rarity 3/128 in quantity 1Adamantite ore13/1281,109240

Gem drop table[edit | edit source]

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

Item Quantity Rarity Price High Alch
Uncut sapphire.png: Monstrous basilisk drops Uncut sapphire with rarity 1/102.4 in quantity 1Uncut sapphire11/102.4; 1/52[d 1]49815
Uncut emerald.png: Monstrous basilisk drops Uncut emerald with rarity 1/204.8 in quantity 1Uncut emerald11/204.8; 1/104[d 1]70530
Uncut ruby.png: Monstrous basilisk drops Uncut ruby with rarity 1/409.6 in quantity 1Uncut ruby11/409.6; 1/208[d 1]1,33560
Chaos talisman.png: Monstrous basilisk drops Chaos talisman with rarity 1/1,092.27 in quantity 1Chaos talisman11/1,092.27; 1/554.67[d 1]5192
Uncut diamond.png: Monstrous basilisk drops Uncut diamond with rarity 1/1,638.4 in quantity 1Uncut diamond11/1,638.4; 1/832[d 1]2,777120
Loop half of key.png: Monstrous basilisk drops Loop half of key with rarity 1/3,276.8 in quantity 1Loop half of key11/3,276.8; 1/1,664[d 1]10,03160
Tooth half of key.png: Monstrous basilisk drops Tooth half of key with rarity 1/3,276.8 in quantity 1Tooth half of key11/3,276.8; 1/1,664[d 1]9,16660
Rune javelin.png: Monstrous basilisk drops Rune javelin with rarity 1/3,276.8 in quantity 5Rune javelin51/3,276.8; 1/1,664[d 1]8801,200
Rune spear.png: Monstrous basilisk drops Rune spear with rarity 1/52,428.8 in quantity 1Rune spear11/52,428.8; 1/3,120[d 1][d 2]11,83412,480
Shield left half.png: Monstrous basilisk drops Shield left half with rarity 1/104,857.6 in quantity 1Shield left half11/104,857.6; 1/6,240[d 1][d 2]65,37066,000
Dragon spear.png: Monstrous basilisk drops Dragon spear with rarity 1/139,810.13 in quantity 1Dragon spear11/139,810.13; 1/8,320[d 1][d 2]37,70937,440
  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 of this item is increased when wearing a Ring of wealth.
  2. 2.0 2.1 2.2 The Rune spear, Shield left half and Dragon spear will only be dropped if Legend's Quest has been started, or else a talisman will be dropped as a replacement.

Tertiary[edit | edit source]

Item Quantity Rarity Price High Alch
Basilisk bone.png: Monstrous basilisk drops Basilisk bone with rarity 1/4 in quantity 1Basilisk bone11/4[d 1][2]Not soldN/A
Brimstone key.png: Monstrous basilisk drops Brimstone key with rarity 1/93 in quantity 1Brimstone key11/93[d 2]Not soldN/A
Basilisk head.png: Monstrous basilisk drops Basilisk head with rarity 1/2,000 in quantity 1Basilisk head11/2,000[1]Not sold2,400
  1. Basilisk bone is only obtained during Rag and Bone Man II.
  2. Brimstone keys are dropped if killed on a slayer assignment given by Konar quo Maten.

Changes[edit | edit source]

Date Changes
23 February 2017
(update | poll)
The monstrous basilisk was given a graphical update to be more distinguishable from their regular variant.

Trivia[edit | edit source]

  • 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. 1.0 1.1 Envision. "Drop Rates V2." RuneScape Forums.
  2. Jagex. Mod Ash's Twitter account. 21 Mar 2019. Mod Ash: "The initial quest ones are guaranteed drops. The longer wish-list is 1/4."