Dragon Egg?
"Really? What's the catch?" Delphine said.
She did not believe Arthur would create a powerful meditation technique for her in exchange for nothing. It had to have something.
"No catch, but I hope you can stay by my side and perhaps take care of Tracy. You know I won't be in that magic school forever," Arthur said.
Of course, there was a catch. She would sell her soul to him, and her constant practice of the technique would grant him more power. Of course, Delphine would also have to obey every order, but Arthur would not ask her to do crazy shit, that is.
"Can you give me the technique now?"
Delphine had been stuck in her level for quite some time, so she was eager to finally get her hands on a decent technique, as those were only for wealthy mages from noble families or those with heaven-defying luck.
"Calm down; I still have to create the technique, remember? Don't worry; you will get it soon enough."