Quote:
Penetration Range (Penetrations 3, dmg -35%)
If you have enemies lined up in front of your spear, you can hit up to three of them. They line has to be fairly straight and the mobs have to be packed together very closely.
The -35% means that the first mobs gets hit for 100% damage, next is 65%, and the third gets hit for 30%.
Basically, it's the same as the skill where you swing the spear in an arc at enemies in front of you. This one is just more linear and has a lower overall dmg % (160 compared to 200).