A viking with two axes ?
Stop smoking carpets XD. Vikings fight with a one-handed sword (that you can find to the immortal npc vendor) or one handed-axe, and one little ring shield ( a "targe" in french). Maybe they used the Francisque too like the Merovingians but it's a weapon we throw before unsheathing the blade.

Well... a shield is still a weapon. It could be very cool to have a DD with combo that alternates between axe/sword and shield blow. FF is much more inspirated by the Nordic mythology than the far-east.
Sure i enjoy to play ninja. The job is really well design but it would have been really more interesting to play a kind of arabian magical warrior to suit better to this universe.

I mean tall and big guys with two-handed weapons, europeans blade, enormous shields, Druids, Alchemist, "Cowboys" and.... Ninjas ?
And now you ask for Samurais ??