Vulnerability is a level 66 Magic spell. When cast on an opponent, their defence level is reduced by 10%. 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 his stats haven't already been lowered, meaning you cannot stack stat reduction with multiple spells in a row.

Remember, you cannot use Ancient Magicks or Lunar spells if you are using standard spells.

Cost

Spell cost
InputCost
5Water rune.png5Earth rune.png1Soul rune.png186
Combo runes
5Water rune.png1Soul rune.png5Dust rune.png186
1Soul rune.png5Mud rune.png1,361
5Water rune.png1Soul rune.png5Lava rune.png186
5Earth rune.png1Soul rune.png5Steam rune.png506
5Earth rune.png1Soul rune.png5Mist rune.png976
Staves
5Earth rune.png1Soul rune.pngStaff of water.png166
5Water rune.png1Soul rune.pngStaff of earth.png166
5Earth rune.png1Soul rune.pngMist battlestaff.png166
5Earth rune.png1Soul rune.pngKodai wand.png166
5Water rune.png1Soul rune.pngDust battlestaff.png166
1Soul rune.pngMud battlestaff.png146
5Water rune.png1Soul rune.pngLava battlestaff.png166
5Earth rune.png1Soul rune.pngSteam battlestaff.png166


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