From Black Desert Wiki
The Blader has exotic distinct features reminiscent of east Asian culture. He can duel wield and is agile. This class, like the Tamer and the Giant does not have a female counterpart.
The blader starts out by being a two-handed swordmans. As he levels up, he can use Twin Sword including an intangible magic sword on his left hand. The dual sword skill has a time limit.