If you're set on learning aura delph, you could try getting some ribombee/cutiefly to teach you if lucario wont. Apparently cutiefly use aura to detect what flowers will bloom, and a large part of why they're fast is because they also use aura to detect their opponents next move.
“Yeah, why don’t you go hunting bugs and fairies, Delphox? I’m sure you’ll have plenty of fun stumbling around to find one of those elusive twerps.”
“Hmph. I’m sure I could find one that’s got a better personality than you, and even if I couldn’t, at least I have friends that are willing to help me out. You probably can’t even hold onto solid companions, so, that’s probably a worse fatal flaw than all of my issues combined.”
“I have friends.”
“But you’re probably an ass to them, so they’re not really there for you when you’re going to really need to depend on them. I already have had my friends prove that they would. So, again, you’re probably in a worse position in life, and that’s without being blind.”
“...”
“And no, I don’t need my Psychic powers to know that I’m right either, if that’s your next thought crossing your mind. In fact, I’m less skilled at that regardless. But I digress, I have more important matters to ‘stumble into’ and busy myself with. Farewell!”
What would some of the knights or monarchs do if they weren’t well, working for the castle..?
“Well, I don’t imagine it would be—”
“Probably living a nice domestic life with my husband-to-be in a nice cottage off in the outer woods of the kingdom’s borders. We’d have a lovely garden and he could finally have time to help me practice cooking. Quite likely lots of kissing and hand holding as well.”
“Actually, you know what? That’s extremely interesting, precious, adorable, and I want that more now.”
“Lovesick fools.”
“Somebody sounds jealous...!”
“Am not! ...To answer the question, I’d likely be a researcher. Hopefully that would be a safer climate to raise my family in.”
“Huh. This is a good question. Maybe I’d figure out what to do with my life and understand my personal interests better.”
“Oh hey, that’s a great idea! Me too!”
“You guys sound more depressing than my voice, and that’s saying something.”
“Raising a family sounds nice! ...And you’d get to be home, dear.”
“Nice try, but you’re not fooling me with that one.”
“Domestic living with the husband and son would be ideal!”
“Probably work at a library.”
“May I join you?”
“Sure, that’d be a perfect fit for you.”
“This feels like it’d take forever to go through for everyone...I wonder how many folks I could recruit to my personal fan club instead!”