"There are three general body types to select from."

"What are they?"

"Slim, curvy, and full. The first is skinny and short, with little muscle: the third is taller and more muscular: the second is intermediate between the two."

"Why is the one referred to as 'curvy' when I would have a male body?"

"I was hoping it would help you to forget about the downside of the card."

"That's hilarious. Are there any salient differences between the three besides aesthetics?"

"Yes. The first learns faster, the second is more dextrous, and the third has a stronger constitution."

Hmm. "I'd go with curvy, then," she says, and reflects briefly back on the lifespan question. "Are there any ways to extend my lifespan besides choosing the one-quarter or one-sixth aging rates?"

"You have the option to additionally age half as fast as the original option you chose."

"Does this have any downsides?"

"The loss of another option for that choice."

"And what choice is that?"

"The choice of the strangeness in your life."

"And what are the details of this choice?"

The creature grinds its teeth.

"There are ten possible anomalies that might occur in your life. You may pick up to five of them."

"What are the ten anomalies?"

"Firstly, that you will become a boy whenever you are exposed to hot water, and become a girl whenever you are exposed to cold water.
Secondly, your body will never experience any negative impact from eating food, even unhealthy food.
Thirdly, you will have the ability to change the coloration of your body.
Fourthly, you will age half as fast.
Fifthly, you will never need to attend to your personal hygiene ever again.
Sixth, you will be able to summon a powerful magical artifact.
Seventh, you may master a single style of dance and vocals, or a single painting and drawing style.
Eighth, you may become experienced at a single form of armed combat, or you may become adept at a single noncombat sport.
Ninth, you may set your age up to five years lower or higher than your apparent age, or you may gain the ability to heal others' wounds once a month.
Tenth, you may gain or remove tattoos or piercings from your body at will, or summon clothing in any style once per day."

"...Doesn't the first one kind of take away the major downside for this card?"

The shadow shrugs.

"How does the second one work? Does unwanted weight gain count as a negative effect? Does wanted weight gain count as a negative effect? If it prevents weight gain do the extra calories just vanish or do you get a super-liver that stores the excess calories as glycogen instead of fat?"

"I don't know precisely. Yes, no, I don't know."

"Can you tell me of anyone I could ask in this world who might know?"

"I don't have to answer that question."

"Can I customize the options? Decide what painting or drawing or sport or whatever that option gives, or choose any details of the artifact?"

"Yes."