Death rune

Ironman verdict

At least 9 monsters drop it. The easiest is Thug (level 11, 1/128); the best rate is Nechryael (elite) (level 106), at 20/72, about 42 per kill. You can also make it yourself: it takes 65 Runecrafting and gives 10 Runecrafting XP, using Pure essence. There is one other recipe below. Other sources include Gnome Restaurant, Hero, Essence impling and Essence impling jar, plus 4 more listed below. Making ten takes 10 × Pure essence and gives 100 Runecrafting XP. Reaching level 65 Runecrafting takes 449,428 XP in total; the Runecrafting calculator counts the actions and materials to any target, and the Runecrafting guide has the Ironman training route. 9 recipes use Death rune, including Ascendri bolts (e), Catspeak amulet (e) and Hydrix bakriminel bolts (e). Death 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 62 coins, which is 248 less than the shop price, so buying it to alch does not pay.