1 in every 4 packs (give or take) contains a 13th card from this special list of cards in place of an advertisement or token within the pack (not counted in the 12 cards), and while some are dud commons that tie in with a sets theme, others can be quite valuable
Damn, the Original Magic: The Gathering Sure Was Kinky Meet the card that made me say, "I wish I was her for real." I played Magic: The Gathering once in my entire life
The protectors are a little bit opaque, which can make it hard to see the cards in some light, but when the light hits them right, they really shine and look incredible
Feed the Swarm, Chaos Warp, and Canoptek Tomb Sentinel are your only realistic ways to deal with problematic enchantments in these colors
That'll count for battlefield (Zombify), hand (Raise Dead), exile, or library recursion