mtg how to flip cards work lands : r/magicTCG Zendikar Rising Mechanics | MAGIC:

Theres nothing worse than discovering youve bought counterfeit Magic the Gathering singles

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The error is small when the deck is very large relative to the number of draws, but for typical MTG parameters (60-card deck, 7-card hand), the difference between binomial and hypergeometric results is measurable and can lead to incorrect deck construction decisions

If the melded permanent is a commander, it may be exempt from this rule