Blue dragons were ancient and formidable beasts. They were able to manipulate the energy of nature in strange ways and mold them into defensive or offensive constructs.
The layman would call what they did "magic", and for the purposes of explaining the effects of what those dragons did, they were probably not wrong.
What the blue dragons could do in the absence of technology truly seemed magical.
However, there was nothing inherently magical or supernatural in what they were doing.
Blue dragons had energy-sensitive bodies that were able to not only sense but also manipulate the energy around them.
After thousands or even millions of years, they had developed their abilities to manipulate energy into an art form.
And apparently, in the outside universe, there are various other races that could do that too, as evidenced by Princess Augustine's incredible show of power.
