Lasaonar

Lasaonar is a drow swordmaster living in Ust Natha. He has been known to participate in duels in the local tavern's fighting pit.

The player character in Baldur's Gate II: Shadows of Amn, disguised as a drow, can watch Lasaonar fight three people at once in the tavern. After this, they can engage him in a duel themselves, getting challenged by belittling his performance. If they win, his patron - a priestess - will challenge them next. After this, some mage duels become available.

Lasaonar wears drow adamantine full plate +5 and wields two swords that are similarly made of adamantine, having a +3 ehancement bonus. Whereas one of these is an ordinary drow longsword +3 as carried by several others in the game, the other is actually the Blade of Searing, a bastard sword +3 that does minor fire damage on each hit and is made of a special alloy that will last the sunlight once taken back to the surface. He gives this sword to the player character when defeated by them, and it's one of the few large, one-handed swords with such a high enhancement bonus found in Shadows of Amn.