Although Shay didn't want to get involved or be seen, there was no way for her to get back without the help of the Dark Magus. She could attempt to run away but after seeing the things he could do and feeling part of his wraith that thought hardly entered her mind.
Instead, she was peeking at Raze's fight with Alter and she was in disbelief at what was taking place and what she was seeing.
The Alter members who were unable to fight due to how far Raze was now were able to take place in combat and were heading straight for him.
But he was superior in every way, even with them using Artifacts. He would block powerful strikes and then attack with his own swordsmanship taking them out in one or two hits.
With his other hand free, he didn't stop using magic and casting spells. Sometimes a stream of lightning coming from his finger tips attacking those far away or keeping them in place.