The Blade gave her mystical senses and enhanced her understanding of magic while the office was right above the mana geyser and filled her to the brim with world energy.
Thrud needed one breath of her personal technique, Regal Flow, to start the process. Just as Jormun had predicted, the Awakening process caused her mana to flood through every fiber of her being and fight against the unnatural rainbow core of hers, trying to beat it into submission.
Thrud's body was ripped to shreds and so was her vortex and her mana core which turned into seven smaller spheres of different colors. As the impurities left Thrud's body, all but the violet sphere grew in power and merged with the blue one the moment their color matched.
As for the vortex, the mana organ that Arthan's Madness had bestowed upon her and that granted her Invigoration-like abilities, it lost part of its mass by releasing small vortexes that fused with Thrud's body.