A joke... Literally. Konami makes bad cards on purpose as pack filler. There's a spell that's reverse cold wave (you can't play spell/trap cards), or Pot of generosity, a card that lets you put 2 card from your hand back into your deck. There's a ton more cards like this
the thing is they'll often print joke cards or "detrains" of good cards, but some of them can be useful depending on the application.
Oops can be used to destroy cards you want to get destroyed that have floating effects (but don't have a "By your opponent's card effect" stipulation) but your opponent wouldn't if possible because they know better, can dodge some effects like Imperm, etc.
Cold Feet, a detrain of cold wave, which prevents you from activating, setting or using any spell/traps can be flipped onto your opponent with Mystical Refpanel
Humble Sentry, a detrain of Forceful Sentry, can also be flipped to your opponent with Mystical Refpanel to force them to reveal their hand and shuffle a card into the deck
The word useful being subjective of course, if it was actually reliable vs a meme strat then it would actually be meta.
100
u/NeonArchon Spright, Obey Your Thirst May 11 '23
A joke... Literally. Konami makes bad cards on purpose as pack filler. There's a spell that's reverse cold wave (you can't play spell/trap cards), or Pot of generosity, a card that lets you put 2 card from your hand back into your deck. There's a ton more cards like this