Crumble Undead

Crumble Undead
Released		24 May 2001 (Update)
Members		No
Level		39
Spellbook		Standard
Type		Combat
Experience		24.5
Base max hit		15
Runes		2 2 1
Casting speed		5 ticks
Description		Hits skeletons, ghosts, shades & zombies hard
Animation
Sound effect

Crumble Undead is a spell on the standard spellbook, requiring level 39 Magic to cast and costing 2 air runes, 2 earth runes, and 1 chaos rune. This spell can only be cast on undead enemies, such as skeletons, zombies, ghosts and shades; trying to cast it a non-undead NPC yields the chatbox message: This spell only affects skeletons, zombies, ghosts and shades.

Crumble Undead can only be autocast by a skull sceptre (i), 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. In particular, the skull sceptre (i) is the only free-to-play weapon that can autocast this spell.

Crumble Undead costs 1 less earth rune than Earth Bolt by default, but can be outdone in damage by all Bolt spells in F2P, depending on magic level and the extent of the monster's elemental weakness; something very common amongst undead monsters. Further, the only method to autocast via the skull sceptre (i) means paying the full rune cost each time, making it inefficient to train with.

Despite requiring chaos runes, chaos gauntlets have no effect on this spell, as they only increase the max hit of Bolt spells.

Crumble Undead is highly useful for fighting Vorkath, as it is capable of instantly killing the zombified spawn it summons during the fight.

The spell is also cheap and convenient for killing the tree spirit in the Lost City quest from a safespot, as both the tree spirit and the zombies that need to be killed during the quest are susceptible to Crumble Undead.

Crumble undead has a max hit of 15, 18 when paired with the salve amulet (ei).

Maximum hit

Level	Base max hit	Prayer used
		None
39	15	15	15	15	15	15

Spell cost

Input	Cost
2 2 1	126
Combo runes
1 2	124
2 1 2	348
2 1 2	176
2 1 2	246
2 1 2	300
Main-hands
2 1 Alt	116
2 1 Alt	116
1	106
1.71 1.71 0.86 Alt	109
1.7 1.7 0.85	108
Main and off-hands
2 1	116
1 Alt	106
1.71 0.86 Alt	100
1.7 0.85	99

• Crumble undead was the first spell or item to have an affinity for a specific monster attribute.

v t e Standard spellbook
Combat	Strike spells Wind Water Earth Fire Bolt spells Wind Water Earth Fire Blast spells Wind Water Earth Fire Wave spells Wind Water Earth Fire Surge spells Wind Water Earth Fire God spells Saradomin Strike Claws of Guthix Flames of Zamorak Charge Curse spells Confuse Weaken Curse Bind Snare Vulnerability Enfeeble Entangle Stun Tele Block Other Crumble Undead Iban Blast Magic Dart
Teleport	Lumbridge Home Minigame Varrock Lumbridge Falador House Camelot Kourend Castle Ardougne Civitas illa Fortis Watchtower Trollheim Ape Atoll Boat Target Teleother Lumbridge Falador Camelot
Utility	Jewellery Enchantments Sapphire/Opal Emerald/Jade Ruby/Topaz Diamond Dragonstone Onyx Zenyte Charge Orb spells Water Earth Fire Air Enchant Crossbow Bolt Opal Sapphire Jade Pearl Emerald Red Topaz Ruby Diamond Dragonstone Onyx Alchemy Bones to Bananas Low Level Alchemy Superheat Item High Level Alchemy Bones to Peaches Alchemic Divergence Alchemic Convergence Other Telekinetic Grab Monster Inspect Summon Boat