Indeed. I cannot think of any Servant capable of such a feat...

[Even if he takes on the generous assumption that this is a result of multiple Servants -- which is already stretching the limits of his imagination -- there is no explanation for the scale.]

Reality Marbles are not easily maintained, either. It has been a couple of hours, and yet nothing has changed.

[...]

As reluctant though I am to admit, this might be something beyond my scope of understanding. Only time will tell.