Mossy key

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Mossy key detail.png

A mossy key grants players access to Bryophyta's lair in the moss giant section of the Varrock Sewers.

It is consumed when used to unlock the gate, allowing one fight with Bryophyta per key. It is possible to hold more than one mossy key at once.

The drop rate of mossy keys are 1/150 from moss giants and 1/120 for Iorwerth Dungeon moss giants. For those located in the Wilderness, the drop rate is increased to 1/60. However, while on a moss giant slayer task, the drop rate is increased to 1/50 (1/40 for those found in the Iorwerth Dungeon).

The Mossy Key is lost upon death and cannot be retrieved.

Item sources[edit | edit source]

For an exhaustive list of all known sources for this item, see here (include RDT).
SourceLevelQuantityRarity
Bryophyta128 Multicombat.png11/16
Moss giant Level 8484 Multicombat.png11/120
Moss giant42; 48; 84 Multicombat.png11/150

Changes[edit | edit source]

Date Changes
8 April 2020
(update | poll)

The drop rate of mossy keys from moss giants in the Wilderness has been increased from 1/150 to 1/60.