Passive effect

RS

Many items and equipment sets have passive effects or set effects, which trigger on their own when equipped. These effects confer a wide variety of benefits, both combat and noncombat. In the case of a passive effect that applies to an equipment set, all items of that set must generally be equipped for the set to activate.

Combat effects

Weapons

Weapon		Effect
	Twisted bow	Accuracy and damage is increased in correspondence to the target's Magic level.
	Dragon hunter crossbow	Accuracy and damage is increased by 30% when fighting most dragons, wyverns and the Great Olm.
	Craw's bow	When charged with at least 1000 revenant ether, the weapon gains +50% damage and accuracy (+100% accuracy and +25% damage for the sceptre) against all NPCs in the Wilderness. Each attack consumes one ether.
	Thammaron's sceptre
	Viggora's chainmace
	Staff of the dead	Each combat spell cast with the weapon has a 1/8 (12.5%) chance of drawing its power completely from the weapon, negating its rune cost. The kodai wand further increases to 15% chance.
	Staff of light
	Toxic staff of the dead
	Kodai wand
	Sanguinesti staff	Each successful hit has a 1 in 6 chance of healing the wielder half the amount of Hitpoints dealt to a target.
	Silverlight	Damage is increased against demonic creatures. Arclight offers slightly superior stats than the abyssal tentacle against demonic creatures.
	Darklight
	Arclight
	Holy water	Performs strongly against demons.
	Blackjacks	All blackjacks have a chance to stun a target upon hitting, causing them to briefly stop attacking the player; the better the material, the more chance of stunning occurring.
	Keris	Grants 33% more damage against scarab creatures and kalphites. Also grants a 1/51 chance to deal triple damage.
	Wolfbane	When wielded, the dagger stops the residents of Canifis from morphing into their more powerful Werewolf form.
	Leaf-bladed battleaxe	Accuracy and damage is increased by 17.5% when fighting turoths and kurask. This does stack with a slayer helmet or equivalent's bonuses.
	Zuriel's staff	Boosts Ancient Magicks combat spells: Ice spells have 10% more accuracy. Blood spells heal 50% more. Smoke spells poison damage is increased by 100%. Shadow spells Attack drain is increased by 100%.

Armour pieces

Armour		Effect
	Elysian spirit shield	There is a 70% chance of reducing the damage the player receives by 25%. Does not work against non-combat damage e.g. poison.
	Spectral spirit shield	Reduces the effectiveness of all Prayer draining attacks by 50%. Does not work against other players.
	Dinh's bulwark	If the block style is chosen, 20% less damage is taken, however the player forfeits their ability to attack. Does not work against other players.
	Anti-dragon shield	Offers partial protection against dragonfire when worn.
	Elemental shield	Offers partial protection against wyverns' icy breath when worn.
	Mind shield
	Dragonfire shield	Offers partial protection against dragonfire and wyverns' icy breath when worn.
	Ancient wyvern shield
	Dragonfire ward
	Black mask	Increases melee damage and accuracy by 16.67% while fighting monsters assigned as the player's current Slayer assignment. The imbued helmet also increases Magic and Ranged damage and accuracy by 15%. Charged black mask: Also randomly reduces the opponent's Defence level, draining one charge.
	Slayer helmet
	Slayer helmet (i)
	Broodoo shield	Charged: Randomly reduces the opponent's Attack, Defence, or Strength level, depending on the colour of the shield, draining one charge.
	Chaos gauntlets	Increases damage by bolt spells by +3.
	Serpentine helm	If the target is an NPC and worn in conjunction with a venomous weapon (toxic staff of the dead when casting combat spells, toxic blowpipe or trident of the swamp), the chance to envenom a target is 100% per attack. If worn in conjunction with any poisoned melee weapon or Ranged ammunition (excluding emerald bolts (e)), the chance to envenom a target is 50%. Otherwise, if worn in conjunction with any non-poisoned melee weapon, the chance to envenom a target (including other players) is 16.7%. Also grants immunity to becoming poisoned and envenomed.
	Magma helm
	Tanzanite helm

Jewellery

Jewellery		Effect
	Necklace of faith	When the user is hit down to less than 20% of their maximum hitpoints (including being hit for 0), they will have their Prayer restored for 10% of their Prayer level, destroying the necklace in the process.
	Ring of life	When the user is hit down to less than 10% of their maximum hitpoints (including being hit for 0), they will be teleported to their respawn point, destroying the the ring in the process. If both the ring of life and phoenix necklace are equipped, then the phoenix necklace will activate first.
	Phoenix necklace	When the user is hit down to less than 20% of their maximum hitpoints (including being hit for 0), they will heal for 30% of their maximum hitpoints, destroying the necklace in the process. If both the ring of life and phoenix necklace are equipped, then the phoenix necklace will activate first.
	Ring of wealth	When killing an NPC, removes empty slots on the rare drop table and automatically collects coins, tokkul and numulite drops in the user's inventory. Imbued: Doubles the chances of receiving a clue scroll while in the Wilderness.
	Amulet of glory	Charged: Increases the chance of finding gems while mining.
	Berserker necklace	If worn with the obsidian sword, dagger, maul or mace, damage is increased by 20%. The damage bonus does stack with obsidian armour.
	Amulet of the damned	Provides buffs to full barrows equipment sets in addition to their normal passive effects.
	Amulet of avarice	When worn, every NPC item drop in the Revenant Caves is noted. The player is permanently skulled until the amulet is unequipped, in which case the skull will disappear after 20 minutes.

Armour sets

Void Knight

Void Knight armour has a set effect, directed by the combat class of the worn helmet, that increases the user's accuracy and possibly damage in the chosen style.

Image	Helmet	Set effect
	Melee	+10% melee accuracy and strength
	Ranger	+10% ranged accuracy and strength
	Mage	+45% magic accuracy

Yak-hide

Yak-hide armour has a passive effect where damage taken from ice trolls found on Neitiznot & Jatiszo is greatly reduced.

Image	Item	Effect
	Top	Reduces damage taken by Ice troll runts, males and grunts.
	Legs
	Fremennik shield	Reduces damage taken by Ice troll females.

Shayzien

Shayzien armour has a passive effect where damage taken by the poison attack used by Lizardman shamans is reduced. The higher the tier, the more damage reduced; the damage is completely negated when the tier 5 set is worn.

Tier	Damage Reduction
1	20%
2	40%
3	60%
4	80%
5	100%

Justiciar

Justiciar armour has a set effect where damage taken is reduced depending on the player's defence bonus towards it (except in PvP). The exact formula for the amount of damage reduced is

$\frac{bonus}{3000}$ , where bonus is the player's defence bonus for that particular style. For example, if an enemy was using a crush style attack and, and the player has a crush defence bonus of +450, then 15% of the damage (450/3,000) is reduced.

Equipment sets

Barrows

Each Barrows set grants its own unique special effect when ALL four pieces of the set of a particular Barrows brother are equipped.

Weapon	Name	Description	Animation
Dharok's greataxe	Wretched Strength	Attacks do more damage as the player's Hitpoints decrease.
Torag's hammers	Corruption	Successful melee attacks have a 25% chance of lowering the victim's run energy by 20%.
Guthan's warspear	Infestation	Attacks have a 25% chance of replenishing the player's health equal to the damage dealt.
Verac's flail	Defiler	Attacks have a 25% chance of ignoring any armour, Defence, and protection prayers.
Karil's crossbow	Tainted Shot	Successful ranged attacks have a 25% chance of lowering the enemy's Agility level by 20%.
Ahrim's staff	Blighted Aura	Successful magical attacks have a 25% chance of lowering the enemy's Strength by 5 levels.

If an amulet of the damned is worn with a Barrows equipment set, the set effect is enhanced or an additional passive effect is provided. This additional effect can trigger simultaneously with the standard effect, if applicable.

Set	Effect
Ahrim	Able to autocast Ancient Magicks. Also a 25% chance of dealing a hit with 30% increased damage.
Dharok	When hit, there is a 25% chance of recoiling 15% of the damage taken. This effect can stack with the Vengeance spell and a ring of recoil to recoil 100% of the damage taken.
Guthan	The healing effect can heal players 10 hitpoints above their base Hitpoints level.
Karil	For each attack, there is a 25% chance of dealing two hitsplats. The second hitsplat will deal half the damage of the first hitsplat.
Torag	Defence increased by 1% for every 1 health missing.
Verac	Additional +4 Prayer bonus (not counting the amulet's +3).

Obsidian

Obsidian equipment has a set effect, where obsidian weaponry gain a 10% Attack and Strength boost if a full set of obsidian armour is worn (excluding shield and cape). This does stack with the Berserker necklace damage bonus.

God Wars Dungeon protection

Many pieces of equipment affiliated with the gods Saradomin, Zamorak, Armadyl and Bandos provide a passive effect that prevents followers of that particular faction from being aggressive within the God Wars Dungeon. This effect does not apply to the bosses or to their bodyguards.

Poison and venom

Some items have the ability to add weapon poison on it, which in turn makes the weapon poisonous such as the popular dragon dagger. When fighting an opponent, there is a chance of inflicting poison on them, starting at 6 damage with the highest weapon poison applied to the weapon. The damage will gradually decrease and will go away.

Venom works slightly differently to poison. Only a few items have the ability to inflict venom, namely items that are dropped by Zulrah. When fighting an opponent, there is a chance of inflicting venom on them, starting at 6 damage and will gradually increase to a maximum of 20 damage per hit. Venom does not cure itself.