Should I add a penny sleeve if I'm going to place my card in one of these magnet cases? : r PokemonTCG Question: Is vacuum sealing penny sleeves going to damage my cards? GENERAL CARD QUESTION: (gpk pictured because it's the issue on hand) These cards once in a penny sleeve, are sticking to the sleeve and portray this wet, splotchy look. Some of the 63.5x88mm Card Sleeves 110 Pack Sleeve Kings sleevekings Damage from taped penny sleeves in Magic: The Gathering shipments Are My Penny Sleeves Actually Causing Damage to My Cards? Hobby Talk Episode #82