Monstrous basilisk

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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 Drop Rate Project, unless otherwise cited.

The average Monstrous basilisk kill is worth 39,734.33.

The average Monstrous basilisk kill while on a Konar task is worth 41,039.61.

100%[edit | edit source]

Item Quantity Rarity Price High Alch
Bones.png: Monstrous basilisk drops Bones with rarity Always in quantity 1Bones1Always1370

Weapons and armour[edit | edit source]

Item Quantity Rarity Price High Alch
Mithril axe.png: Monstrous basilisk drops Mithril axe with rarity 3 × 3/128 in quantity 1Mithril axe13 × 3/12878312
Mithril spear.png: Monstrous basilisk drops Mithril spear with rarity 3 × 2/128 in quantity 1Mithril spear13 × 2/128261507
Steel battleaxe.png: Monstrous basilisk drops Steel battleaxe with rarity 3 × 3/128 in quantity 1Steel battleaxe13 × 3/128145390
Adamant full helm.png: Monstrous basilisk drops Adamant full helm with rarity 3 × 1/128 in quantity 1Adamant full helm13 × 1/1281,8622,112
Mithril kiteshield.png: Monstrous basilisk drops Mithril kiteshield with rarity 3 × 1/128 in quantity 1Mithril kiteshield13 × 1/1281,0471,326
Rune dagger.png: Monstrous basilisk drops Rune dagger with rarity 3 × 1/128 in quantity 1Rune dagger13 × 1/1284,4154,800
Mystic hat (light).png: Monstrous basilisk drops Mystic hat (light) with rarity 3 × 1/512 in quantity 1Mystic hat (light)13 × 1/5128,4499,000

Runes[edit | edit source]

Item Quantity Rarity Price High Alch
Water rune.png: Monstrous basilisk drops Water rune with rarity 3 × 8/128 in quantity 75Water rune753 × 8/128375150
Nature rune.png: Monstrous basilisk drops Nature rune with rarity 3 × 5/128 in quantity 15Nature rune153 × 5/1283,0901,620
Law rune.png: Monstrous basilisk drops Law rune with rarity 3 × 3/128 in quantity 3Law rune33 × 3/128438432
Nature rune.png: Monstrous basilisk drops Nature rune with rarity 3 × 1/128 in quantity 37Nature rune373 × 1/1287,6223,996

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 3 × 1/14.6 in quantity 1Grimy guam leaf13 × 1/14.6157
Grimy marrentill.png: Monstrous basilisk drops Grimy marrentill with rarity 3 × 1/19.5 in quantity 1Grimy marrentill13 × 1/19.5158
Grimy tarromin.png: Monstrous basilisk drops Grimy tarromin with rarity 3 × 1/26 in quantity 1Grimy tarromin13 × 1/261149
Grimy harralander.png: Monstrous basilisk drops Grimy harralander with rarity 3 × 1/33.4 in quantity 1Grimy harralander13 × 1/33.46219
Grimy ranarr weed.png: Monstrous basilisk drops Grimy ranarr weed with rarity 3 × 1/42.6 in quantity 1Grimy ranarr weed13 × 1/42.66,87518
Grimy irit leaf.png: Monstrous basilisk drops Grimy irit leaf with rarity 3 × 1/58.5 in quantity 1Grimy irit leaf13 × 1/58.570510
Grimy avantoe.png: Monstrous basilisk drops Grimy avantoe with rarity 3 × 1/78 in quantity 1Grimy avantoe13 × 1/781,79210
Grimy kwuarm.png: Monstrous basilisk drops Grimy kwuarm with rarity 3 × 1/93.6 in quantity 1Grimy kwuarm13 × 1/93.61,51212
Grimy cadantine.png: Monstrous basilisk drops Grimy cadantine with rarity 3 × 1/117 in quantity 1Grimy cadantine13 × 1/1171,36513
Grimy lantadyme.png: Monstrous basilisk drops Grimy lantadyme with rarity 3 × 1/156 in quantity 1Grimy lantadyme13 × 1/1561,42113
Grimy dwarf weed.png: Monstrous basilisk drops Grimy dwarf weed with rarity 3 × 1/156 in quantity 1Grimy dwarf weed13 × 1/15647014

Materials[edit | edit source]

Item Quantity Rarity Price High Alch
Adamantite ore.png: Monstrous basilisk drops Adamantite ore with rarity 3 × 3/128 in quantity 1Adamantite ore13 × 3/1281,154240

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 3 × 29/128 in quantity 44Coins443 × 29/1284444
Coins_100.png: Monstrous basilisk drops Coins with rarity 3 × 17/128 in quantity 200Coins2003 × 17/128200200
Coins_100.png: Monstrous basilisk drops Coins with rarity 3 × 5/128 in quantity 132Coins1323 × 5/128132132
Coins_5.png: Monstrous basilisk drops Coins with rarity 3 × 5/128 in quantity 11Coins113 × 5/1281111
Coins_250.png: Monstrous basilisk drops Coins with rarity 3 × 1/128 in quantity 440Coins4403 × 1/128440440

Gem drop table[edit | edit source]

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

Item Quantity Rarity Price High Alch
This does not exist.NothingN/A3 × 1/51.29; Never[d 1]N/AN/A
Uncut sapphire.png: Monstrous basilisk drops Uncut sapphire with rarity 3 × 1/102.4 in quantity 1Uncut sapphire13 × 1/102.4; 1/52[d 2]40915
Uncut emerald.png: Monstrous basilisk drops Uncut emerald with rarity 3 × 1/204.8 in quantity 1Uncut emerald13 × 1/204.8; 1/104[d 2]65830
Uncut ruby.png: Monstrous basilisk drops Uncut ruby with rarity 3 × 1/409.6 in quantity 1Uncut ruby13 × 1/409.6; 1/208[d 2]1,29660
Chaos talisman.png: Monstrous basilisk drops Chaos talisman with rarity 3 × 1/1,092.27 in quantity 1Chaos talisman13 × 1/1,092.27; 1/554.67[d 2]5652
Uncut diamond.png: Monstrous basilisk drops Uncut diamond with rarity 3 × 1/1,638.4 in quantity 1Uncut diamond13 × 1/1,638.4; 1/832[d 2]2,529120
Loop half of key.png: Monstrous basilisk drops Loop half of key with rarity 3 × 1/3,276.8 in quantity 1Loop half of key13 × 1/3,276.8; 1/1,664[d 2]9,83960
Tooth half of key.png: Monstrous basilisk drops Tooth half of key with rarity 3 × 1/3,276.8 in quantity 1Tooth half of key13 × 1/3,276.8; 1/1,664[d 2]9,83260
Rune javelin.png: Monstrous basilisk drops Rune javelin with rarity 3 × 1/3,276.8 in quantity 5Rune javelin53 × 1/3,276.8; 1/1,664[d 2]8851,200
Rune spear.png: Monstrous basilisk drops Rune spear with rarity 3 × 1/52,428.8 in quantity 1Rune spear13 × 1/52,428.8; 1/3,120[d 2][d 3]11,89812,480
Shield left half.png: Monstrous basilisk drops Shield left half with rarity 3 × 1/104,857.6 in quantity 1Shield left half13 × 1/104,857.6; 1/6,240[d 2][d 3]65,26966,000
Dragon spear.png: Monstrous basilisk drops Dragon spear with rarity 3 × 1/139,810.13 in quantity 1Dragon spear13 × 1/139,810.13; 1/8,320[d 2][d 3]37,68737,440
  1. The "nothing" drop is removed while wearing a ring of wealth.
  2. 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. 3.0 3.1 3.2 Only dropped if Legends' Quest has been finished; if not, a talisman is dropped instead.

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]Not soldN/A
Brimstone key.png: Monstrous basilisk drops Brimstone key with rarity 1/74 in quantity 1Brimstone key11/74[d 2]Not soldN/A
Basilisk head.png: Monstrous basilisk drops Basilisk head with rarity 1/2,000 in quantity 1Basilisk head11/2,000Not sold2,400
  1. Basilisks bone are only dropped during Rag and Bone Man II.
  2. Brimstone keys are dropped if killed on a Slayer task given by Konar quo Maten.

Superior Slayer tertiary[edit | edit source]

Item Quantity Rarity Price High Alch
Mist battlestaff.png: Monstrous basilisk drops Mist battlestaff with rarity 1/292.1 in quantity 1Mist battlestaff11/292.197,2439,300
Dust battlestaff.png: Monstrous basilisk drops Dust battlestaff with rarity 1/292.1 in quantity 1Dust battlestaff11/292.123,6589,300
Eternal gem.png: Monstrous basilisk drops Eternal gem with rarity 1/1,022.4 in quantity 1Eternal gem11/1,022.47,432,4125,700
Imbued heart.png: Monstrous basilisk drops Imbued heart with rarity 1/1,022.4 in quantity 1Imbued heart11/1,022.430,632,848300,000

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.