A Base Set Unlimited pack cannot contain Shadowless cards. The Shadowless cards are a distinct print run within the original Pokémon Base Set series, separate from the Unlimited print run. To understand why, it is important to clarify the differences between the three main Base Set print runs: 1st Edition, Shadowless, and Unlimited.
The **1st Edition Base Set** was the very first print run of the Pokémon Trading Card Game’s Base Set, released in 1999. These cards are marked with a “1st Edition” stamp on the left side of the card and are highly sought after by collectors.
Following the 1st Edition print run, the **Shadowless Base Set** was released. These cards do not have the 1st Edition stamp but are characterized by the absence of a shadow on the right side of the Pokémon’s image box. This shadow is present in later print runs and gives the card a slightly different visual depth. Shadowless cards also have some subtle differences in font and card texture compared to Unlimited cards.
The **Unlimited Base Set** is the third print run and the most common. These cards include the shadow on the right side of the Pokémon image box, which is why they are called “Unlimited” or sometimes just “Base Set” cards without any special designation. Unlimited cards were printed in much larger quantities and are generally less valuable than 1st Edition or Shadowless cards.
Because these print runs were produced sequentially and separately, **a booster pack labeled as Base Set Unlimited can only contain Unlimited cards**. Shadowless cards were never included in Unlimited packs. Shadowless cards were only available in their own print run packs, which were distinct from Unlimited packs.
This distinction is supported by collector and expert sources, which emphasize that Shadowless labeling applies exclusively to the early Base Set print runs and should not be confused with Unlimited cards. The Shadowless cards are recognized as a separate category due to their unique printing characteristics and rarity compared to Unlimited cards[2].
In summary:
– **1st Edition Base Set**: Has the 1st Edition stamp, no shadow on image box.
– **Shadowless Base Set**: No 1st Edition stamp, no shadow on image box.
– **Unlimited Base Set**: No 1st Edition stamp, shadow on image box.
Each print run was packaged separately, so a Base Set Unlimited booster pack cannot contain Shadowless cards.
Regarding errors and variations, some Unlimited cards have printing errors or ink stains, but these do not change the fundamental print run classification. For example, Unlimited cards may have yellow ink streaks or speckled black ink dots, but they remain Unlimited cards and are not Shadowless[1].
No authoritative sources or official Pokémon TCG documentation indicate that Shadowless cards were ever included in Unlimited booster packs. Collectors and grading companies treat these print runs as distinct, and the presence of Shadowless cards in an Unlimited pack would be considered a major anomaly or counterfeit.
Therefore, if you come across a Base Set Unlimited pack, you should expect only Unlimited cards inside, never Shadowless ones. This is a well-established fact in the Pokémon card collecting community and supported by detailed print run analyses[2].

