Hello friend, congratulations on the project, it really is something wonderful!!

I am writing to you to make a suggestion for a new feature in the game.

It happens that many users play classic alternative formats such as goat, edison, tengu, gx and hat. Currently I have been able to get this to work in MDPro3 but I have a limitation and it is that in MDPro3 there is no functionality for #whitelist. The whitelist is a functionality that in the banlist allows you to define a list of allowed cards in addition to the list of banned, limited and semi-limited cards. In this way if you have a total of 3000 allowed card ids in the deck editor when selecting the format you will only see the 3 thousand allowed cards plus the list of limited, banned and semi-limited cards. I am attaching an example of a format with this functionality implemented.

As you can see in the file, there is a #whitelist attribute that allows the client to filter only the allowed list in these cases and not the total of all existing cards.2010.03_Edison.lflist.conf