How to use this site:
This site is to help find which card packs to buy to
get cards that you're currently missing.
Type the monster numbers of monsters that you've found
in the box, then hit submit. The monsters that you've
found will be hidden from the list. If you have all
the cards that a pack can yield, the entire pack will
Speedrobo's list was audited to be internally consistent and then missing information was filled in with the latest information on the Japanese Monster Monpiece Wiki (http://monmon.game1wiki.com/index.php).
Consistentcy is not correctness; I've not verified any of the card lists (especially those that require you to spend real money).