Racial Powerswing

Certain stocky races excel at using their bulk to more easily handle large, heavy weapons. The powerswing racial increases your chances of using 2nd attack (and similar skills) while wielding 2-handed weapons.

This bonus only applies to specifically 2-handed weapons, not weapons which require 2 hands but, have a different description, such as spears, bows and chains.

To determine whether or not a weapon is affected by Racial Powerswing, simple Examine it while trained in Weapon Lore: if it has either the Hafted or Double Hit properties, you will not gain the benefits of Racial Powerswing.