Giant Killer

The bigger they are, the harder they are to kill. At least for most. But your hero knows how to find the weak points in massive creatures. Your hero does +1d6 damage when attacking creatures three sizes or more larger than himself. An ogre (Size +3) with this ability, for example, gains the bonus only against creatures of Size +6 or greater. A human Giant Killer (Size 0), can claim the bonus against the ogre, however.