Julia briefly thought on it. "I think it's best to keep her when we can see what she's doing." She didn't know how she felt about soulbinding in general, though still didn't really like it, but it was still ideally better than allowing them to run rampant wherever they liked. "Besides, she might be helpful for the worst case scenario."
Julia didn't say what it is, as she got ready to leave, with the fast stop to collect her good deck to have it on her for a change, but still sliding Beezle into it. Her own deck didn't run a lot of synchro support or have many options, but she felt it was better to have than not. As far as she knew, the diabolic dragon wanted to happen. It wasn't necessarily a good thing, she was aware. A dragon that's literally a embodiment of darkness might not necessarily have the same ideas of what's good for it's owner, even if it wanted to be helpful. She had to be wary about using it too liberally....but still...for the time being, it could still be a just in case option.
With her feeling more prepared, as well as grabbing a few deliberately cheap and unfair cards that might help Felicia's archfiends if she wanted to use them, they were on their way. She didn't have time to rifle through the whole collection, but the choices she did find in a rush, she thought would do their job more than well enough.