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Mature grotworm

Release date	22 May 2012 (Update)
Members?	Yes
Combat level	120
XP per kill	283.2 (and 93.5 experience)
Slayer level	1
Slayer XP	73.6
Assigned by	Turael or Spria, Mazchna or Achtryn, Chaeldar, Sumona, Vannaka, Duradel or Lapalok, Kuradal
Always drops	Big bones
Examine text	The final stage of a grotworm before its metamorphosis.
Combat stats LP Max hit 3000 420 Attack Defence Ranged Magic 1 60 1 60 Other Immune to Poison? Immune to Stun? No No Attack Speed Speed 3 (Interval: 4.2 seconds) Aggressive? Poisonous? No No Attack styles Weakness Magic Melee Bolts

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Mature grotworms are monsters that can be found on the bottom level of the Grotworm Lair. They have slow, but extremely accurate, magic and melee attacks (It should be noted that, due to the recent changes of the combat system, these grotworms are no longer especially accurate or dangerous for players with a combat level of 160 or higher). However, magic attacks are only used on players outside of melee range, similar to monsters such as metal dragons and cockroach soldiers. It is possible to safespot them using the pillars if you stand far enough back from them. Lower-level players are recommended to bring high healing food such as monkfish or sharks. Ranged/magic would require Protect from Magic/Deflect Magic if using safe spots. The magic attack has a short range, so flashing your prayer when out of its range can help conserve prayer points. Despite their ranged weakness a player with 70+ melee stats should have no trouble killing them efficiently, even without the use of prayer.

Using high level ranged gear such as Armadyl and using a bunyip will mean you won't need prayer pots/flasks. Due to the occasional shark drops, at most you should only need 1 or 2 pieces of food as your gear will mean little damage from the mature grotworms magic attack while ranging.

If a player tries to setup a cannon within the Grotworm Lair a message will be visible in the console saying: "The damp air would prevent your cannon operating."

Some players may find it useful to bring runes to cast High Level Alchemy on the items dropped by the grotworms, as adamant and rune equipment are common drops. The profit of using this spell on some of these items is greater than banking and selling them.

DropsEdit

100% dropEdit

Item		Quantity	Rarity	GE Market Price
	Big bones	1	1 Always	441

CharmsEdit

Charm drop percentages

No charms
89–90%	3%	2%	5%	0.8–1%

Represents 90% confidence range, based on a sample of 32,043 kills.
1 charm is dropped at a time.

Please add to the log (only if 50 or more creatures killed).

Weapons and ArmourEdit

Item		Quantity	Rarity	GE Market Price
	Adamant chainbody	1	2 Common	2,458
	Adamant sq shield	1	2 Common	1,858
	Rune dagger	1	2 Common	4,403
	Rune helm	1	2 Common	11,027
	Rune mace	1	2 Common	8,185
	Rune longsword	1	2 Common	18,654
	Royal cape	1	3 Uncommon	162

HerbsEdit

Item		Quantity	Rarity	GE Market Price
	Grimy guam	1	3 Uncommon	516
	Grimy harralander	1	3 Uncommon	612
	Grimy tarromin	1	3 Uncommon	225
	Grimy ranarr	1	3 Uncommon	2,169
	Grimy irit	1	3 Uncommon	1,772
	Grimy avantoe	1	3 Uncommon	4,171
	Grimy kwuarm	1	3 Uncommon	2,557
	Grimy marrentill	1	3 Uncommon	43
	Grimy dwarf weed	1	4 Rare	8,069
	Grimy cadantine	1	4 Rare	2,538
	Grimy lantadyme	1	4 Rare	7,733

SeedsEdit

Item		Quantity	Rarity	GE Market Price
	Cactus seed	1	3 Uncommon	27
	Poison ivy seed	1	3 Uncommon	52
	Avantoe seed	1–2	3 Uncommon	1,989–3,978
	Dwarf weed seed	1	5 Very rare	36,586
	Fellstalk seed	2	3 Uncommon	1,018
	Cadantine seed	1	3 Uncommon	2,038
	Irit seed	1	3 Uncommon	66
	Belladonna seed	1	3 Uncommon	34
	Toadflax seed	1	3 Uncommon	623
	Kwuarm seed	1	4 Rare	311
	Snapdragon seed	1	4 Rare	2,360
	Lantadyme seed	1	5 Very rare	34,200
	Torstol seed	1	5 Very rare	70,221

Raw MaterialsEdit

Item		Quantity	Rarity	GE Market Price
	Flax	50 (noted)	2 Common	1,000
	Runite ore	1	3 Uncommon	10,461
	Adamantite ore	3 (noted)	3 Uncommon	4,608
	Royal dragonhide	1	4 Rare	5,261

OtherEdit

Item		Quantity	Rarity	GE Market Price
	Coins	5,000	2 Common	Not sold
	Shark	2	2 Common	1,698
	Saradomin brew (2)	1	2 Common	294
	Anagogic ort	20	3 Uncommon	Not sold
	Blood rune	10, 50, 100	2 Common	1,660–16,600
	Law rune	10–45	4 Rare	1,790–8,055
	Long bone	1	4 Rare	Not sold
	Curved bone	1	4 Rare	Not sold
	Spin ticket	1	4 Rare	Not sold
	Clue scroll (hard)	1	4 Rare	Not sold
	Rune bar	1	5 Very rare	13,006
	Court summons	1	5 Very rare	Not sold
	Starved ancient effigy	1	5 Very rare	Not sold

Rare drop table dropsEdit

This monster drops items from the rare drop table.
The ring of wealth improves the chances if equipped but is not required to access the table.

TriviaEdit

• When these creatures were first released, they did not drop items from the rare drop table, but did after the Queen Black Dragon update.
• The word 'grotworm' means caveworm in Dutch.
• Their examine text hints towards the possibility of the existence of a stronger grotworm based creature, although likely not an actual worm as "metamorphosis" implies, but none were released with them.
• Due to excessive botting, an update on 7 August 2012 removed several rune armour drops from the drop table of mature grotworms, replacing them with their adamant counterparts, making it less effective to earn money. The same update also removed royal bolts from their drop tables.
• Although their Attack level is 1, they attack with fairly accurate melee attacks being able to do 300+ easily even with the use of good armour.