Seerow's Sword of Fighting
In the hands of some characters this greatsword functions merely as a masterwork greatsword, although its magical aura reveals it to be something more. In the hands of a character with one or more feats from the fighter bonus feat list is this sword's real function revealed as it gains an enhancement bonus to attack equal to 1/2 the number of feats from the fighter bonus feat list that the wielder possesses and a bonus to damage equal to the number they possess. Each feat which explicitly requires fighter levels counts as two feats for the purpose of this weapon.
I might associate Seerow primarily with his fighter fix and fighter feats