Seeing the differences between how the manga and the anime portrays Mary Sue is very interesting.
Manga Sue: Seems to be less of a berserker, more like an airheaded saint. Despite her words, she doesn't seem all that angry. Just... disappointed? Retains enough reason to effectively defend her allies, as well as allow her allies' magic to work on her.
Anime Sue: A true berserker, overflowing with rage. Completely irrational and barely willing to prevent friendly fire. Much more intimidating and with a greater sense of danger. It really felt like she was a complete wild card on the battlefield.
Regardless, with this chapter we finally see how OP Mary Sue is, as befits her name. And since the manga inflates everyone's power beyond both the light novel and the anime, it's extremely impressive.
Becoming a living operation orb... that elevates her head and shoulders above all other mages in the setting.