A basilisk is a Slayer monster that requires a Slayer level of 40 to kill. Like cockatrices, players must equip a mirror shield or V's shield when fighting these monsters. Players require a Defence level of 20 in order to receive basilisks as a Slayer task, as this is required to wield the shield. Basilisks have below average accuracy for their level, but have high Defence. They are weak to crush attacks, so, if using Melee, a Leaf-bladed battleaxe is an excellent weapon to use. A worse but still viable option would be Ivandis flail/Blisterwood flail if the player has the necessary quest requirements.
Without the mirror shield, the player's combat stats will be greatly reduced with each hit. The Protect from Melee prayer can be used, but the stats will still be lowered.
Basilisks are a good source of runes. Due to their high drop rate of nature runes, it would be useful to bring a Staff of fire or kill some pyrefiends to the east, to use High Level Alchemy on their frequent metal armour and weapon drops.
These can be safespotted from the southern entrance to their area in the Fremennik Slayer Dungeon, by using the south-east wall to stop their movement. This does not remove the need of a mirror shield, as their drain attack is ranged. Other safespots can be achieved by using the rocks on either side of the room, having the Basilisk get stuck on the other side of the rocks/pebble. Note that players cannot set up a dwarf multicannon within the dungeon.
Drop rates estimated based on 48,470 kills from the Drop Rate Project, unless otherwise cited.
The average Basilisk kill is worth 784.52.
The average Basilisk kill while on a Konar task is worth 1,088.75.
There is a 35/128 chance of rolling the herb drop table.
The overall chance of rolling a coin drop is 57/128 with an average value of 102.
There is a 5/128 chance of rolling the gem drop table.
|Nothing||N/A||1/51.29; Never[d 1]||N/A||N/A|
|Uncut sapphire||1||1/102.4; 1/52[d 2]||375||15|
|Uncut emerald||1||1/204.8; 1/104[d 2]||548||30|
|Uncut ruby||1||1/409.6; 1/208[d 2]||1,176||60|
|Chaos talisman||1||1/1,092.27; 1/554.67[d 2]||568||2|
|Uncut diamond||1||1/1,638.4; 1/832[d 2]||2,705||120|
|Loop half of key||1||1/3,276.8; 1/1,664[d 2]||10,092||60|
|Tooth half of key||1||1/3,276.8; 1/1,664[d 2]||10,281||60|
|Rune javelin||5||1/3,276.8; 1/1,664[d 2]||900||1,200|
|Rune spear||1||1/52,428.8; 1/3,120[d 2][d 3]||11,851||12,480|
|Shield left half||1||1/104,857.6; 1/6,240[d 2][d 3]||65,357||66,000|
|Dragon spear||1||1/139,810.13; 1/8,320[d 2][d 3]||37,013||37,440|
- An unused version of the Basilisk exists that is slightly smaller than normal. This variant cannot be found anywhere ingame.