Might be wrong place. Mod(s) plz feel free to move.

tl;dr:

Our current method for presenting decklists for Magic Online Leagues is to randomly select ten of the top-performing decklists per format per day. Starting July 10, we will be reducing the total number of top decklists being presented per day from ten to five, and each of these decklists will be randomly selected with the caveat that each list will be at least ten cards different from every other list.

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