Urk I lost most of my post so I'll keep this short. Damn bad gateway. >.< Ah well.
Ok I think I'll give Trish Excalibur or Caliborg or the sword Gram (or I might set up the idea that one became the other etc) now as everyone else is going with legendary weapons. We'd need to adjust their powers as some of them are quite godmoddy. I'll ditch it's scabbard as that stops wounds from bleeding, Masamune's power is difficult. If I've got my myths right it can cut only what the wielder desires. Finally Gungnir always hits it's mark addd to the fact that it's Odins spear, we need a plot reason for your girl to have it Pen.
Last i've already got fire Sessha so we could either make them different kinds of fire oor they could have a rivalry of sorts.