What weapons does your character use in particular? Are they more geared to heavy weapons? Blunt, sharp, or piercing? Long or short?
Or is your char a mage? There's all sorts of offensive magics...basics being things like magic missile, poison dart, fireball. Perhaps your char has enhanced mana capabilities in the use for offensive magic, but only after being harmed or threatened.
Or, you could do something interesting like what I like to call a "Valkyrie's Strike," where your char can leap into the air and do an aoe attack from above.
Or wait...did I give that idea to soul already? I can't remember. I'm hungry. *noms*