Grotworm

The Grotworm is a monster that attacks with both magic attacks and magical melee. They have a fairly slow attack speed (around the same as Dharok's greataxe), but they can hit fairly accurately for their levels. The Grotworms are weak to slash attacks thus making any slash weapon effective against them. It was released with the new quest Song from the Depths. They can be found on the middle level of the Grotworm Lair. Due to the amount of food they frequently drop, they can be killed continuously without any need to restock. Although there is little currently known about Grotworms, the name implies Grotto-worm, meaning cave-worm.

Following the release of the Queen Black Dragon, Grotworms also dropped Royal bolts and Royal dragonhides which for the first hour sold for huge amounts of money with Royal dragonhides worth up to 2 million coins.

100% drop

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Potions

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Food

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Weapons and armour

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Ores

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Herbs

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Seeds

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Runes

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Other

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Trivia

 * Grotworm is Dutch for Cave worm.
 * In Lord of the Rings, Cave-worm is dragon-type, which may clue into what the "metamorphosis" can yield, (as per Mature Grotworm examine text).
 * The grotworm is the only monster to drop both medium and hard clue scrolls. (except Cyclopes.)