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Mature grotworm

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Members iconMature grotworm
Mature grotworm
The final stage of a grotworm before its metamorphosis.
Location: Grotworm Lair
Non-aggressive monster icon
Non-poisonous icon
Can be stunned icon
Can be leeched from icon
Can be shoved icon
Can be poisoned icon
Attack Strength Magic Ranged Defence
70 1 70 1 70
Level: 98
Attack style: Magic Magic
Max hit: Unknown [Edit]
Life points: 10500
Weakness: Bolts Bolts icon
Combat XP Constitution XP
283 94
Attack speed:
Slow - 4.2 seconds
Always: Big bones
Notable: Rune equipment
Other: See drop table
Slayer master: Sumona
Duradel or Lapalok
Slayer level: 1
Slayer XP: 205

Drop Table

There are three rolls: one for charms, one for the clue scroll, and another for the remaining drop table items.

Click here to see how the rarity of the drop is established
Rate From To Notes
Always 1 N/A This is a guaranteed drop.
Common 0.1 0.99 Up to a 1 in 10 chance
Uncommon 0.01 0.099 Up to a 1 in 100 chance
Rare 0.001 0.0099 Up to a 1 in 1,000 chance
Very Rare 0.0001 0.00099 Up to a 1 in 10,000 chance
Super Rare - - Greater than a 1 in 10,000 chance
(Usually a 1 in 100,000 or a 1 in 1,000,000)
Image Name Quantity Price Drop Rate
Big bones Big bones 1 532 coins drop-table-always.gif
No charms N/A N/A drop-table-common.gif
Crimson charm Crimson charm 1 N/A drop-table-common.gif
Green charm Green charm 1 N/A drop-table-uncommon.gif
Gold charm Gold charm 1 N/A drop-table-uncommon.gif
Blue charm Blue charm 1 N/A drop-table-uncommon.gif
Royal cape Royal cape 1 24315 coins drop-table-uncommon.gif
Adamant chainbody Adamant chainbody 1 1111 coins drop-table-uncommon.gif
Rune helm Rune helm 1 1147 coins drop-table-uncommon.gif
Adamant sq shield Adamant sq shield 1 1183 coins drop-table-uncommon.gif
Rune dagger Rune dagger 1 1213 coins drop-table-uncommon.gif
Rune mace Rune mace 1 1432 coins drop-table-uncommon.gif
Rune longsword Rune longsword 1 1303 coins drop-table-uncommon.gif
Saradomin brew Saradomin brew (2)] 1 6689 coins drop-table-uncommon.gif
Super restore Super restore (2) 1 3028 coins drop-table-uncommon.gif
Adamantite ore Adamantite ore (noted) 3 449 coins drop-table-uncommon.gif
Runite ore Runite ore 1 451 coins drop-table-uncommon.gif
Spirit ruby Spirit ruby 1 N/A drop-table-common.gif
Spirit emerald Spirit emerald 1 N/A drop-table-common.gif
Spirit sapphire Spirit sapphire 1 N/A drop-table-common.gif
Drop table: Super Rare N/A N/A drop-table-uncommon.gif
Drop table: Super Rare Seeds N/A N/A drop-table-uncommon.gif
Drop table: Rare Herbs N/A N/A drop-table-uncommon.gif
Coins Coins 5000 N/A drop-table-uncommon.gif
Flax Flax (noted) 50 1780 coins drop-table-uncommon.gif
Shark Shark 2 383 coins drop-table-uncommon.gif
Fellstalk seed Fellstalk seed 2 21635 coins drop-table-uncommon.gif
Royal dragonhide Royal dragonhide 1 24372 coins drop-table-uncommon.gif
Clue scroll (hard) Clue scroll (hard) * 1 N/A drop-table-rare.gif
Starved ancient effigy Starved ancient effigy 1 N/A drop-table-very-rare.gif

* This item has a higher chance of dropping if the ring of wealth is equipped.

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