[quote=Iatos]Oh So here comes a stupid question: If a pokémon with like...arms wields a Honedge, would it raise their attack?
[/quote]
It will most likely be some kind of double attack, using both attack stats, sorta like how Pokémon can attack together in the anime and manga.

[quote=Card Captor]
My guess is that any damage done by swinging the Honedge would depend on it's attack stat. But this brings up the question of; can a Pokemon channel an attack through the Honedge (ie, could a Zangoose use Slash with the Honedge)?
[/quote]
Depends on the attack. I'm leaning towards no. However, the wielder would be able to use attacks that Honedge knows, e.g. Slash.

I might make an exception with something like Shadow Ball since Honedge is a Ghost-type, but we'll cross that bridge when we come to it.

[quote=Card Captor]
When he evolves into Doublade it is
[/quote]
I wonder how that would work. Who would the second sword be? What would he be like? Would he be a clone, or...?