Buy RS3 Ground mud runes
Ground mud runes are an item in RuneScape 3. They are made by using a pestle and mortar on a mud rune, which gives 1 Herblore experience. They are stackable and tradeable, and they weigh nothing, so they are easy to keep in your bank or inventory.
The main reason players want ground mud runes is for making extreme magic potions. At level 91 Herblore, use ground mud runes on a 3-dose super magic potion. Each potion made grants 250 Herblore experience. This makes ground mud runes a key supply for training Herblore at high levels.
They also have a use in the quest The Eyes of Glouphrie. Adding them to a bucket of sap makes magic glue. This glue repairs a broken machine in Brimstail's cave near the Gnome Stronghold.
Players with level 85 Magic can also make them with the Telekinetic Grind spell. This spell grinds 60 mud runes at a time, using 2 astral runes and 1 law rune, and gives 60 Herblore experience.
Buying ground mud runes in bulk saves time. You can skip the grinding and get right to mixing potions and gaining Herblore experience.