Maximum Charge Tier: V: The maximum charge tier of this Rune Arm is Tier V.
Insightful Intelligence +3: This item focuses the power of the wearer's mind, granting a +3 Insight bonus to Intelligence.
Insightful Intelligence +2: This item focuses the power of the wearer's mind, granting a +2 Insight bonus to Intelligence.
Rune Arm Imbue: Acid IV: Wearing this Rune Arm will imbue any weapon you wield, dealing 2 to 16 points of acid damage per hit. This damage scales with 200% Melee or Ranged Power (whichever is higher).
Maximum Charge Tier: V: The maximum charge tier of this Rune Arm is Tier V.
Corrosion: Passive: +102 Equipment Bonus to Acid Spell Power.
Potency: Passive: +68 Equipment Bonus to each Spell Power. (Universal Spell Power is a different statistic.)
Rough Hide +4: This item fuses with your body and toughens your skin, providing a +4 Primal bonus to your natural armor.
This magical device, found in Eveningstar's hospital, seems to somehow have been altered by the magical plague afflicting the villagers. When worn by an Artificer capable of channeling energy through it, it infects them with a benign version of the disease, temporarily toughening their skin for as long as the rune arm is worn.