Maximum Charge Tier: III: The maximum charge tier of this Rune Arm is Tier III.
Smiting Weapons: While wearing this item, your melee and ranged weapons gain Vorpal Effect: On an attack roll of 20 which is confirmed as a critical hit this weapon will completely destroy a construct. Powerful constructs may resist the vorpal effect until sufficiently damaged.
Exceptional Fortification (10%): This suit of armor or shield produces a magical force that protects vital areas of the wearer more effectively. When a critical hit or sneak attack is scored on the wearer, there is a 10% chance that the critical hit or sneak attack is negated and damage is instead rolled normally. This effect stacks with other fortification bonuses besides itself.
Physical Sheltering +13: +13 Enhancement bonus to Physical Resistance Rating
Fortitude +5: +5 Resistance bonus to Fortitude saves.
Rune Arm Imbue: Electrical II: Wearing this Rune Arm will imbue any weapon you wield, dealing 2 to 8 points of electrical damage per hit. This damage scales with 200% Melee or Ranged Power (whichever is higher).
Craftable Rune Arm: This Rune Arm is craftable and can be customized using recipes at standard crafting devices after disjuncting.
An unfinished design, Haywire was in the middle of perfecting this rune arm when his foundry exploded. It was meant to keep unruly constructs in line.