Self-defense mechanism against the Ara Ara psycho, nothing out of the ordinary here.
'Ara Ara~';
literally the most terrifying thing any male character in a harem anime will ever hear.
Though I thought the Fairy letters were simply a sign that those weapons were not crafted by humans, but I'm not sure if they hold any power in themselves.
It's unclear. That is certainly a reason why fairy letters were put on fairy-made Divine Constructs, but whether they actually do anything or not is unknown, mostly because
no-one has the faintest clue what fairy letters actually mean.
Given that various ancient languages have been demonstrated to have powerful magical applications (Scáthach's Primordial Runes spring to mind) it seems likely that fairy letters
can be used to do stuff, whether they
are functional and not decorative on known Divine Constructs though? *Shrug*
Unfortunately the fairies did...
something which basically erased all knowledge of their existence, to the point that literally the only thing known about the Age of Fairies is that it was a thing and that it has ended by the modern era.
What do fairy letters mean? What happened in the Age of Fairies? Why is Avalon the way it is? Where did the fairies go if they're not in Avalon? To these questions and more, nobody has the
faintest clue what the answers are.
But still, something on the scale of Excalibur would be beyond Al to creat on his own, even if Fou would share the memories he had of the original(I'm assuming that Fou was with Merlin for a long time and spend it around some of the knights of the round).
Well, I mean,
theoretically he has the capacity to make something like Excalibur, assuming he possessed the correct skills and materials.
But, there's no-one to teach him such skills, and one of the primary materials needed to make an Excalibur is
the hope of all mankind for a brighter future, good fucking luck figuring out how to acquire
that as an actual metaphysical item that can be forged into a sword. And that's just the
start.
I'd say if he dedicated his entire existence to figuring out how to recreate the necessary techniques to forge Excalibur and completely abandoned all morality regarding the costs of experimentation, Al
might have as much as a 50/50 chance of creating something like Excalibur after 10 - 20 thousand years of constant effort. If he got
really lucky he might even not accidentally the planet in the process.
In short; possible in theory, in practice? Not so much.
e: Also, I believe Fou didn't end up with Merlin until after the dickwizard got stuck in Avalon, which was after he left Artoria due to the Lady of the Lake hunting him for reasons unknown, but probably related to dickwizardry. So Fou wouldn't have been around personally for Merlin's Grand Adventures with the Knights of the Round Table, though Merlin may well have told Fou a lot about that period with illusions and the like.
Maybe, still not decided on any ships with the Spirits at least.
Kurumi seems to have decided for you.
Well... he can be faster than her, also with his Presence Concealment Marble, he can pretty much stalk her stalking others...
The trick is to get her to play the game and then drive her insane by using illusions, so while she's playing 'no I am behind YOU' Al is just sitting off to the side lying on a beach chair and sipping a fruity drink with an umbrella in it.
that...
Which brings the question what type of cat she is sporting in and if it's a product of her powers or... certain type of 'toys' especially that tail...
It's called 'imouto mahō'
