I need help, I'm stumped for strengths.
Demonic Physiology: Laharl is a demon and is naturally more physically adept than most humans.
Multi-weapon Master: Laharl is well versed in and capable of using a wide variety of weapons, among then spears, axes, firearms, staves, bows, and his bare hands, but truly excels at swordsmanship.
Flight: Laharl's scarf can spread out and function as wings, allowing him to fly.
Meta-awareness: Laharl knows that he is in a video game, and is aware of things like stats, levels, EXP, and whether or not he's the main character of a particular story.
I'd also like to include something like Minion Management skills, but I've forgotten if Laharl is very good at the actual job parts of being the Overlord (you know, things like running the realm, inspiring loyalty, and making sure everybody gets paid on time) or if he's more of a beatstick that hangs out in his castle unless an upstart or another overlord shows up to make trouble and generally leaves things to run themselves.