Crumble Undead

The RuneScape Wiki also has an article on: rsw:Crumble UndeadThe RuneScape Classic Wiki also has an article on: classicrsw:Crumble undead

Crumble Undead
Released		24 May 2001 (Update)
Members		No
Level		39
Spellbook		Standard
Type		Combat
Experience		24.5
Damage		15
Runes		2 2 1
Casting speed		5 ticks
Animation
Sound Effect

Crumble Undead is a spell that requires a magic level of 39 to cast and costs 2 air runes, 2 earth runes and 1 chaos rune. It has a max hit of 15. This spell can only be cast on undead enemies, such as skeletons, zombies, ghost and shades. Crumble Undead is a good way to train magic, as it costs fewer runes than Earth Bolt (same if you are wielding a staff of earth) and hits as hard as Earth Blast.

The spell can only be autocast by slayer's staff, slayer's staff (e), staff of the dead, toxic staff of the dead, staff of light, staff of balance, or void knight mace.

It is highly recommended against Vorkath, as the spell instantly kills the Zombified Spawn it summons during the fight.

It is also the best method for easily killing the tree spirit in the Lost City quest from a safespot.

Trying to attack a non-undead NPC with Crumble Undead says "This spell only affects skeletons, zombies, ghosts and shades".

The spell can always be paired with the salve amulet (ei), increasing its max hit to 18.

Cost

Spell cost

Input	Cost
221	84
Combo runes
12	78
212	556
212	86
212	256
212	318
Main-hands
21Alt	74
21Alt	74
1	64
1.751.750.88Alt	73
1.71.70.85	71