Maximum Charge Tier: V: The maximum charge tier of this Rune Arm is Tier V.
Nightmare Guard: This item has a chance of terrorizing foes that hit you, applying a Mind Thrust effect when you are hit by them (dealing 5 to 40 force damage, Will vs. Enchantments negates). It may also expose your foes to their greatest fears, acting as a Phantasmal Killer spell.
Potency: This item provides a +48 Equipment bonus to each of your Spell Powers.
Spell Lore VI: Passive: All of your spells gain a +6% Equipment Bonus to their chance to Critical Hit.
Mind Drain: This item reduces your maximum spell points by 5% while equipped.
Will Save -2: This item a -2 penalty to your Will saves.
Rune Arm Imbue: Force IV: Wearing this Rune Arm will imbue any weapon you wield, dealing 2 to 12 points of force 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.
You hear the faint whispers of infinite possibilities while wearing this runearm. I'm sure it's just your imagination.