I'm not responding to the Power stuff... Its obvious to any WoT reader that it was portrayed pathetically and that no rules applied to Brandon when he wrote the book. The fact that Graendal can fight Aviendha, Cadsuane, Alivia, Talaan and Amys at the same time unaided is all that needs to be said. Luckily this is the last book or she would have fought the whole White Tower in the next one. And lets not forget that Rand deflected a shield woven by a circle of thirteen.... Etc...

Demandred thought that Lan was so skilled that he might be Asmodean reborn. Asmodean is thus a skilled swordsman.