Before sleeving your deck, shuffle it first! While you’re at it, also shuffle your sleeves. This will be sure your deck doesn’t become marked due to variations in your sleeves, especially when you are combining sleeves from two different packages. You don’t want a game loss because your lands’ sleeves ended up being a little shorter.

The penalty for Marked Cards (when determined to be unintentional) is normally a warning, but there is also this clause in the Infraction Procedure Guide: “The Head Judge has the option to upgrade this penalty to a Game Loss if he or she believes that a player noticing the pattern of markings would clearly compromise the integrity of the game.”

Today’s Tournament Tip written by Darren Gamble