A small script to generated Beta booster packs for Magic: the Gathering. The rarities were established by examining the actual print sheets.
This is the best beta pack generator I know of.
You'll need ruby installed. If you have it, simply do:
ruby gen.rb <packs_per_pool> <number_of_pools>
For example:
ruby gen.rb 9 8
The contents of abu.checklist are copyright Wizards of the Coast. The rest is copyright me and free for use with the BSD license.