Mud rune

Ironman verdict

At least 9 monsters drop it. The easiest is Molanisk (level 44, 2/128); the best rate is Living rock patriarch (level 95), at Always, about 50 per kill. You can also make it yourself: it takes 13 Runecrafting and gives 9.3 Runecrafting XP, using Pure essence, Earth rune and Earth talisman. There is one other recipe below. Other sources include Essence impling, Essence impling jar, Dung kalphite and Alchemist's chest, plus 4 more listed below. Making ten takes 10 × Pure essence, 10 × Earth rune and 10 × Earth talisman and gives 93 Runecrafting XP. Reaching level 13 Runecrafting takes 1,833 XP in total; the Runecrafting calculator counts the actions and materials to any target, and the Runecrafting guide has the Ironman training route. 7 recipes use Mud rune, including Cracked hunter urn (empty), Decorated hunter urn (empty) and Exquisite hunter urn (empty). Mud rune is members-only. It is tradeable on normal accounts, but an Ironman cannot use the Grand Exchange or trade for it, so the sources on this page are the whole list. High Alchemy turns one into 4 coins.