Chaos rune

Ironman verdict

At least 9 monsters drop it. The easiest is Man (level 2, 1/128); the best rate is Chaos Elemental (level 305), at 14/128, about 41 per kill. You can also make it yourself: it takes 35 Runecrafting and gives 8.5 Runecrafting XP, using Pure essence. There is one other recipe below. Other sources include Gnome Restaurant, Paladin, Essence impling and Essence impling jar, plus 4 more listed below. Making ten takes 10 × Pure essence and gives 85 Runecrafting XP. Reaching level 35 Runecrafting takes 22,406 XP in total; the Runecrafting calculator counts the actions and materials to any target, and the Runecrafting guide has the Ironman training route. 4 recipes use Chaos rune, including Infused wand, Rune display case (catalytic) and Volatile runic brick. Chaos rune is available on free-to-play worlds too. 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 28 coins, which is 112 less than the shop price, so buying it to alch does not pay.