Various text size and text boldness changes (most variants) Slightly different ink color/saturation between printings (all variants) Addition of the Wizards expert level logo on the rear of Unlimited print packs (variants #4-11) Transition from the old rectangular pre-2000 Wizards logo to the new arched Wizards logo (variants #9-11) Shadowless 1st Edition, Long seal Shadowless 1st Edition, Long seal552458 90.1 KB Shadowless, Long Seal Shadowless, Long Seal551476 103 KB Shadowless, Short Seal Shadowless, Short Seal551476 102 KB Thin Font, Short seal (dark artwork color saturation) Thin Font, Short seal (dark artwork color saturation)551476 102 KB Thin Font, Long pack Thin Font, Long pack551540 49.9 KB Thick Font, Short Seal Thick Font, Short Seal551476 106 KB Error 1st edition stamp variant of #6 (no Black triangle stamp) Error 1st edition stamp variant of13311148 175 KB Error "Black triangle 1st edition stamp variant of #6 [see below for info]) Error "Black triangle 1st edition stamp variant553467 100 KB Made in the U.S.A., 1999-2000 copyright, Short seal pack Made in the U.S.A., "1999-2000" copyright, Short seal pack554464 78.7 KB Made in Australia, 1999-2000 copyright, Long seal pack Made in Australia, "1999-2000" copyright, Long seal pack556458 89.5 KB Made in the U.K., 1999-2000 copyright, Long seal pack Made in the U.K., "1999-2000" copyright, Long seal pack551476 121 KB Caution It is important to note that the presence of the Shadowless card pack design on short seal booster packs is not a guarantee that it contains Shadowless cards

Potentially really dangerous if built to do just this
The rear of a League Card shows the following data: Pokdex entries Curry Dex entries Rotom Rally top score Number of Shiny Pokmon found The date the trainer started Chosen starter Pokmon Current Pokmon team How to create and update a League Card The League Card can be created and customized at a Rotomi PC in any Pokmon Center
Its not legendary or an enchant world or anything else self-limiting, so you can load up