Crumble Undead was removed after an update.

The contents of this page no longer exist in RuneScape, and this article is kept for historical purposes.

Crumble Undead was a spell that required a Magic level of 39 and could hit a maximum of 150 life points to undead monsters, which included banshees, shades, zombies, skeletons, ghosts, Crawling Hands, skeletal hands, zombie hands, revenants, Zogres, Skogres, and Ankous.

Attempting to cast Crumble Undead on anything other than undead monsters would yield the message "This spell only affects skeletons, zombies, ghosts and shades".