Vulnerability

Vulnerability
Released		23 October 2002 (Update)
Members		Yes
Level		66
Spellbook		Standard
Type		Combat
Experience		76
Runes		5 5 1
Casting speed		5 ticks
Description		Reduces your opponent's defence by 10%
Animation
Sound effect

Vulnerability is a level 66 Magic spell within the standard spellbook. When cast on an opponent, their Defence level is reduced by 10% (or 15% if the tome of water is also equipped). The spell gives 76 Magic experience per cast and requires 1 Soul, 5 Earth, and 5 Water runes to be cast. The spell can only be cast if their stats haven't already been lowered, meaning you cannot stack stat reduction with multiple spells in a row.

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