Rune Arm

Rune Arm (or Arm Cannon) is new kind of equipment implemented with Update 11 and the Artificer class. It goes into its own equipment slot and requires Artificer Rune Arm Use feat (class feat?) to use.

How it works

 * While pressing the block button you will charge it up.
 * Damage will be affected by Artificer level.
 * Rune Arms will give a bonus elemental damage to the weapon in your main hand.

List of named Rune Arms
Max Charge Tier 2:
 * Flicker - Shan to Kor
 * Flame Warden - Waterworks
 * Thought Spike - Korthos \ Redemption
 * Candlelight - Catacombs
 * Khyber's Fury - Tangleroot
 * Chulchannad's Claw - Carnival

Max Charge Tier 3:
 * The Pea Shooter - Red Fens
 * Coronach - Delera
 * Recoyle - Threnal
 * Trial by Fire - Attack on Stormreach
 * Chimera's Breath - Sentinels of Stormreach
 * The Devourer's Hunger - Cult of the Six

Max Charge Tier 5:
 * Glorious Obscenity - Unknown

Sharn Syndicate being the exception, which doesn't seem to award one Looted ones are unbound, while end rewards are bound * Except Korthos one, its unbound from end reward