My kensai dual-wields both katana's and longswords .. gives him a whole lot of swords to kill with
Long swords are very good in both SoA and ToB, the only reason i dual-wield katana's too, is because of Celestial Fury, and .. later on in ToB, Hindo's Doom ( gives protection from death-magic ).
Im thinking Hindo's Doom + Blackrazor is pretty nifty.
Staff of the magi is nice, but i think its a bit wasted on a kensai, he's a sword saint, respect that [img]smile.gif[/img]
A thief with "use any item ability" on the other hand, is very very lethal with the Staff of the Magi ( unlimited invisibility )