I was watching old cartoons and ended up rewatching "Shaman King" which made me want to build a character off of. My first thought was Relic Channeler Medium focusing on the Champion spirit or possibly a Black Blade.
Any ideas on good builds for a kind of spirit of/bound to the sword character?
Also after looking at Horror Adventures' Legendary Spirits is there any reason I am missing to go the legendary champion instead of the normal one?
Another idea is an Occultist that focuses on Transmutation with a sword.