There is a way to kill strom "Many" times in the last quest in tortage. He respawns after a while, but as soon as you step foot on the boat, he dies automatically (assuming you killed him once already).
Now the sword he drops is "NOT" dual wield, but this is a way to get some extra cash. I have only had success doing this with a pet class, as he evades when you attack him in this spot. But if you have a pet keeping aggro, you can nuke him. Range fighter may be able to hit him once, then drag him to an area off the boat.
Anyway. here you go
These are the jump points to get on top of the boat. Wait here after killing him, and he will respawn after a few minutes. Ber careful not to fall in the water, or inside of the boat, its annoying.
Stand here and wait for him
Here is 2 swords in my inventory
Now, like I said, I you cant duel wield these, but I got a nice shield that has that red skull on it in his misc loot. Other misc loot as well.
Now try for yourself
Added more pics
*notice the totem, acts as a pet to keep aggro, I smuggled back to finish this quest and figured this out*