You are adept as using weapons of great proportions to take down large foes.
Benefit: You can wield weapons intended for creatures that are one size category larger than you, using the same handedness. You take a -2 penalty on attack rolls when wielding a weapon that would otherwise be unusable (such as a large two-handed weapon, if you are a medium creature); this is in addition to the normal penalty for wielding a weapon not appropriately sized for you.
Normal: The measure of how much effort it takes to use a weapon (whether the weapon is designated as a light, one-handed, or two-handed weapon for a particular wielder) is altered by one step for each size category of difference between the wielder’s size and the size of the creature for which the weapon was designed. For example, a Small creature would wield a Medium one-handed weapon as a two-handed weapon. If a weapon’s designation would be changed to something other than light, one-handed, or two-handed by this alteration, the creature can’t wield the weapon at all.
Path of Iron, © 2015, Ascension Games, LLC; Author Christopher Moore