mellored
Legend
You need to attack with a different Light weapon (RAI in a different hand) to trigger NickWhy? Wouldn't Rapier + Scimitar be quite nice, given Scimitar has Nick and thus allows the fourth attack?
Martial Light weapons include
Short sword (d6 vex)
Hand crossbow (d6 vex, 30')
Scimitar (d6 nick)
Simple Light weapon
Club (d4 slow, Str)
Dagger (d4 Nick, 20')
Light Hammer (d4 Nick, Str)
Sickel (d4 Nick, Str)
Rapier is not a light weapon.