Spiked shoulder

The Spiked Shoulder gear piece fits into the hand/arm slot and increases armor penetration by a flat amount.

It is not part of a set, and can be used on all heroes.

Effects
'+ X to primary weapon armor penetration.'

Armor Penetration affects how much of the hero’s damage ignores enemy armor and is applied directly to the enemy’s health (each point of armor pen is 1% of armor ignored).

Based on its tier it will have a different effect.

ex. if it's an epic, it has an epic effect.