Sorcerer drow with longsword

I'm playing my first evil playthrough and just found a drow longsword stuck in a rock in the underdark. It's just way too cool to not use, so I was wondering what would be the best way to be able to use the longsword, but still stay as strong as possible.

The sword will for the most part just be for rp, so I dont necessarily need to build around being a melee fighting sorcerer.

Thanks in advance!