Small One in Battle

You are smaller than most adventurers.  Most might think you have a disadvantage in fighting against larger foes, but your heart and fury drive you into battle in spite of your size.  It is because of your size, however, that you have an advantage against foes twice your size or larger.   It isn't much to brag about, but you find it easier to step out of a foe's reach after engaging them in melee combat.  On a d6 roll, you are able to disengage and step out of an enemy's reach on any odd number roll, but only after you have already successfully hit them in a melee attack.