fear of cards mtg Duskmourn card sees 200% price spike as new deck rises up List.add(d Magic The Gathering - Duskmourn

Depending on your deck, you might also want to look at Clever Concealment, Flawless Maneuver and Cosmic Intervention the latter of which is a lot of fun with fetchlands and mass land destruction, or board wipes when you run a lot of strong EtB effects

A meme-y card combo like this could be more of a flash in the pan - soon forgotten once the next hot new thing shows up

Robaran Mercenaries If you run legends with good activated abilities, Robaran Mercenaries can double the fun

FromTheShire: Funny to do once but seems like he would get boring for me at least

Relic of Progenitus has been one of the premium answers to some strategies: Its cheap, and can play a grindy game removing one card per turn, or one-shot-exiling both graveyards at the right time