"What do you mean?"
You'll need to draw the energy into yourself, he explains, and then overpower it with your own magic.
This is not what I expected. "Draw it in? Like... absorb it?"
He nods. Exactly. The resulting friction between your magic and the taint creates a sort of burning purification. It neutralizes the harmful energy and can even bolster your own reserves.
The idea of pulling this dark, ominous energy into my body makes my skin crawl. "And what if there's too much? What if I can't handle it all at once?"
Grimoire's ears twitch. In those cases, you'd need to purify in stages or enlist help from other magic users. The stronger you are and the more magical capacity you have, the more efficiently you can handle these situations. This amount should be easy for you, especially with your recent expenditures at the wards.