ultra pro card sleeves PRO: Standard 105ct These protectors feature a holographic seal for added security and a classic black finish CardPreserver™ Protective Holders – Ultra

If you spend mana and a card on this, you're going to lose

Even though you only make them discard one card, you get a significant threat

Originally this wasnt so useful, but with the new fusion monsters, Thunder Dragon Colossus and Thunder Dragon Titan, all you have to do is use any effect that activates in the hand (which every thunder dragon monster does) and then send 1 thunder monster to the graveyard to get Colossus out

The pull rate is about three per box, and they are traded at lower prices than CSRs

Oh, and Gray Merchant of Asphodel is apparently a zombie but Id include this no matter what because its just too good to pass on