Weakness system
The Weakness system introduces weaknesses to certain monsters. When hitting an npc with its weak damage type your damage is increased up to 20% depending which weakness type a monster has. Accuracy however remains the same. This additional bonus doesn't affect experience gains but let's you kill opponents quicker. Currently, only the following monsters are considered in the Weakness system:
Different kind of element attack style can be obtain through the use of crystals on various weapons such as Abyssal whips, staves, bows and their dyed variants as well as the Elemental bow and the Elemental staff. Various other weapons have different damage type. It is good to keep in mind that using earth surge spell with an elemental staff (fire) will cancel out the spell damage type and use the staff source of element instead. For exemple, any spell can be used against dust devil to profit from the accuracy bonus as long as the staff used is imbued with a thunder crystal.
Ancient spellbook may also be used to profit from accuracy bonuses given from element weaknesses.| Type of crystal | Type of damage |
|---|---|
| Fire crystal | Fire |
| Ice crystal | Water |
| Nature crystal | Earth |
| Thunder crystal | Air |
| Rod of Ivandis | Air |
| Zuriel's staff | Air |
| element | weakness equivalent |
|---|---|
| Smoke | Air |
| Shadow | Earth |
| Blood | Fire |
| Ice | water |
| Monster | Weakness | accurcy increase |
|---|---|---|
| All monsters inside Vampire catacombs | Fire**, Silver * | 100% |
| Aquanite | Earth | 100% |
| Aviansie | Air & stab | 100% |
| Barrows Brothers | Air & thrown | 100% |
| Bloodveld | Slash | 100% |
| Chaos elemental | Earth & bolt | 50% |
| Cockatrice | Stab | 100% |
| Commander Zilyana | Earth & crush | 50% |
| Corporeal beast 1st form | Stab & slash | 50% |
| Corporeal beast 2nd form | Air & thrown | 50% |
| Dagannoth supreme | Stab | 50% |
| Dagannoth prime | Arrow | 50% |
| Dagannoth rex | Fire | 50% |
| Dark beast | Slash | 100% |
| Demons | Water | 100% |
| Dragons | Water & stab | 100% |
| electryael | Earth & stab | 100% |
| Fire giant | Water & bolt | 100% |
| Frost dragon | Fire & stab | 100% |
| Gargoyle | Crush | 100% |
| General Graardor | Fire & thrown | 50% |
| Giant mole | Fire & Slash | 50% |
| Glacor | fire & crush | 100% |
| Gulega | Stab | 100% |
| Har'Lakk | Slash | 50% |
| Hellhound | Water | 100% |
| Ice giant | Fire | 100% |
| Ice spider | Fire | 100% |
| Ice strykewyrm | Fire & crush | 100% |
| Jelly | Crush | 100% |
| K'ril Tsutsaroth | Water & arrow | 50% |
| Kal'Ger | Water | 50% |
| Kalphite queen 1st form | Stab & crush | 50% |
| Kalphite queen 2nd form | Fire & thrown | 50% |
| King black dragon | Water & stab | 50% |
| Kree'Arra | air & stab | 50% |
| Kolodion | Fire & crush | 50% |
| Light beast | Slash | 100% |
| Lucien Van Rot & followers | Crush | 50% |
| Magmanite | Water | 100% |
| Metal dragons | Earth & crush | 100% |
| Nechryael | Earth & stab | 100% |
| Nex | Bolt | 50% |
| Skeletal wyvern | Fire & crush | 100% |
| Smoke demon champion | Water & arrow | 50% |
| Smoke devil & Dust devil | Air | 100% |
| Spiders | Fire & crush | 100% |
| Tormented demon | Water & stab | 100% |
| Turoth | Crush | 100% |
| tzHaar (excluding HM fight caves | Water & crush | 100% |
| Undead monsters | Air & thrown | 100% |
| Vanstrom klause, Ranis drakan & Vanescula drakan | Fire** & Silver* | 50% |
| Vampyre | Fire** & Silver* | 100% |
| Wildywyrm | Water & slash | 100% |
| Yk'Lagor | Arrow | 50% |