When they're ready to customize their Pokmon card set, they have a few options: buying specific booster packs, taking a chance on randomized packs, or splurging on rarer collectible cards (such as the infamous One Ring card)
If this effect trashed a card with the [Three Musketeers] or [TS] trait, delete 1 of your opponent's level 3 Digimon
Its always nice to show off your love of cats, for example, or you could even get a special one created from a family photo or something
You have stuff to do, some options
Its mystical aura and in-game power made it a highly coveted card from the start
It makes absolutely no difference what you choose, and the kidnapper even lampshades this by stating that it doesn't matter what you say since he's the one making the rules around here