Mint numbers are a combination of a letter followed by a number on the face of every Kolex digital and physical card. These are unique identifiers that specify:

Which printing or minting batch the card was produced in - represented by the letter. “Batches” are the same thing as “edition” (B batch = 2nd edition).

When in the batch the card was produced - represented by the number

For example, a B14 Black Centurion s1mple card would mean that the card was produced in the 2nd batch, and it is the 14th printed Black Centurion s1mple, from that same batch.

On the digital collection side, there are a few exceptional mint letters that hold a high value, such as
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​Midnights: M1
​

Midnights are a super-limited, high-valued Tier 3 card, to which only 10 are available per player.

What Do Mint Numbers Do?

Besides serving as a personalized “serial number” for each card, mint numbers allow for even more collecting freedoms! Some collectors like to chase certain mints like A666, A420, and A13, just to name a few. Alongside that, low-mint cards are generally more valued amongst the collecting community, allowing collectors to hold value cards without having to obtain premium hit cards.