Arthur Dayne must have had haki, at the very least observation.

It was a strange conclusion to come to, or maybe just a bold one. Perhaps he was simply as gifted of a swordsman people said that he was. But it would not have surprised her if she somehow found Arthur Dayne could feel the intentions of those he fought.

He would not have needed to be very skilled at it. Even the split-second knowledge of your opponent's next move could change a fight. Dayne probably wouldn't have even realized he had such an ability. Observation was very much like instinct and would probably be attributed to Dayne's skill as a swordsman, by him and everyone else.

Her life on the Grand Line caused her to reevaluate many of the things she thought she knew about Westero. So many legends that seemed much more real in this new light. The sea dragon, Nagga, slain by the Grey King was likely a Sea King. Balon Blackskin was an Ironborn raider who people said was impervious; he must have been a master of armament haki. Symeon Star-Eyes, a blind warrior, probably knew observation haki. Were the legends of the Age of Heroes truly legends or were they the genuine feats of those who lived in a time before Westeros and Essos were cut off from the strange world around them.

And who else did she know that had the potential to access that power. She could imagine Jon Snow (or Stark or Targaryen or whatever he ended up calling himself) coating himself in the black armor of armament. Of Tyrion using observation to keep a close eye on the comings and goings of the city around him. Of Stannis laying down unruly banners with the conqueror's haki (because knowing her luck, if anyone could use that particular power it would be the perpetually angry Stannis.)

Her own efforts to access her haki had been encouraging, despite what could be considered a late-start. She had not been lucky enough to have had a teacher of such stature as Mihawk or Silvers Rayleigh during the two years she had been separated from her crew. Then again, Luffy and Zoro were already skilled fighters when they began to receive training. Her own teacher had to spend a lot of time helping her catch up.

Observation, she found, came easiest to her but it was by far the most uncomfortable. To reach out and feel someone else's power, someone else's intent to kill echoing in your head, she was surprised it didn't drive men mad. Then again, considering some of the people she met on the Grand Line, maybe it did.

Armament felt like… heat was probably the best way to describe it. The other day she had managed to coat her entire hand in the shiny black covering and it felt like her was dipped in a scalding (for anyone else) bath. She wondered if it felt that way for anyone else or if it was her Targaryen blood leaking through. Who knows how the magic of her lands would effect haki. A warg with armament conjured intimidating images of black-armored wolves.

Conqueror's haki would not come to her. Most people would find it strange that her failed attempts came as a comfort. Her time as a queen and a conqueror carried many bitter memories and better that she not have the power to crush armies with nothing but her willpower.

Daenerys Targaryen would have taken such an ability as proof of her right to rule and as a weapon to conqueror. 'Silver Hair' Dany is happy enough with a good ship and an ocean to sail on.

There are a lot of legends in Westeros that make tons of sense in the One Piece world. Next chapter will be something a bit more substantial.