|Release date||5 June 2008 (Update)|
|XP per kill||854 (and 281.8 experience)|
|Assigned by||Mazchna or Achtryn, Chaeldar, Sumona|
|Examine text||It oozes venom from every pore.|
Killing the Monstrous cave crawler gives the player a reward of 1,000 slayer experience. Contrary to popular belief, killing this boss while having the regular version assigned, does give more slayer experience: 1,000 experience is the maximum, but you will receive the experience for killing the creature in the first place as you would normally when the creature performs its death animation, and then go on to receive the 1,000 slayer experience after having killed the creature. If the player's current task is cave crawlers, then the 15% combat bonus of the (Full) Slayer helmet, Black mask, Hexcrest and Focus sight is in effect, as well as the Monstrous cave crawler counting toward the task.
Cannons may not be used for this fight.
This boss attacks rapidly with ranged. The poison from its ranged attack severely reduces the duration of any antipoison effect. Even with super antipoison, every second or third hit poisons the player (base damage 80).
Use Protect from Missiles to negate damage from its ranged attack. The creature's attacks continue to poison players quickly even through prayer. It is futile to drink antipoison as quickly as the creature inflicts poison. Players should instead concentrate on killing the creature, using food occasionally if necessary to heal from the poison. Take some antipoison for after the fight is over, though. The antipoison totem does not work against this creature's poison, though a Poison purge aura is very effective here.
The recommended style to fight the Monstrous cave crawler is melee, although it is also possible to use ranged or magic. To range it quickly, about Level 40 Ranged is recommended. Mithril bolts and higher work pretty well. Zanik's Crossbow and Bone Bolts also work well, due to this creature's weakness against bone weapons.