Pneumatic Power Gauntlet

Source
The Pneumatic Power Gauntlet (or Pneumatic Power Glove) is a randomly provided invention from the Gnomish Gearworks / Goblin Workshop buildings in the garrison.

Ranged characters will get the knockback version, while melee get the grip version.

Criteria of

 * This item needs to be used 50 times for the Terrific Technology achievement.