"Do you remember the tiger on the cover of the book?"

"Yes."

She had been investigating it for lights, after all.

"That was me."

This makes sense. "Is there anything keeping you from assuming that form now?"

"My powers are linked with yours. The more powerful you are, the more powerful I am. And you need to capture Earthy and Firey, too, before I can assume my true form."

They are seriously called Earthy and Firey, what the hell -

No, stop that, no snarking about card names, even in your head, you need to make friends with these cards.

"I see. Why them?"

"They are the most powerful cards under me."

"... Under you?"

"I am Cerberus, the Sun Guardian Beast of the Clow Cards. Sun cards are under my purview, and they draw their power from me, and I from them."

He could have mentioned that earlier -

"Is there a Moon Guardian of some kind?"

"...yes."

"Can I find them and get their help, too?"

And maybe get some straight answers for once?

"He will be dormant until all cards are recovered."

"Oh. What happens then?"

"Then he will challenge you to ensure you are truly meant to be our master."

That's - alarming. "Um. And what does that entail?"

Shrug.

"Is it a magical confrontation, battle of wills, game of riddles or what? Or do you just not know?"

"Almost certainly magical confrontation."

"Great. Okay. And what happens if I lose?"

"And can I help her out with this confrontation?"

"If you lose, your magic powers are sealed away with the cards in the Clow Book," he tells Yvette, then looks at Blair. "You can't help her with magic."

"... So, all or nothing, defend my magic powers or lose them," says Yvette, sounding - displeased.

"But I can help her?"

"Yes."