Noxious staff (barrows)

The Noxious staff (barrows) is made by dyeing a noxious staff with barrows dye. This process is irreversible, and the dyed version is untradeable. It has the same combat bonuses, special attack and repair mechanics as the regular noxious staff, and it degrades after 10 hours of combat but can be repaired at Bob in Lumbridge, or at an armour stand. If lost in the wild, the killer receives 2000 coins.

Making a barrows dyed noxious staff costs.

Special Attack
The Noxious staff has a special attack named Mirrorback, which requires full adrenaline and will summon a mirrorback spider to aid the player. While active, the spider will reduce damage from attacks against the player by 50%, and reflect that damage to the attacker, but the spider will also be damaged for an equal amount. For instance, if the player is hit by an attack that deals 1000 damage, both the player and the spider take 500 damage, and the attacker receives 500 points of deflection damage. This will last for ten seconds or until the spider is killed. This special attack does not deflect damage from certain attacks, and also cannot deflect damage back to attackers that are immune to deflection damage, such as the Queen Black Dragon.