Here are a few examples, keeping in mind these are subject to change as the game evolves:
* "Bad" cards: These have poor stats, irrelevant effects, or simply don't fit into any current strategies. For example:
* "Kagetokage": This monster has only 100 ATK and DEF, no abilities, and is easily destroyed.
* "Witch of the Black Forest": This card has a weak effect that can be easily countered.
* "Super Rejuvenation": While technically a "trap" card, its effect is negligible and has no practical use.
* Cards with outdated or overly specific effects: Some cards have effects that were relevant in the past but are now obsolete due to changes in the game's mechanics or the emergence of more powerful cards.
* Cards with niche applications: Some cards are only useful in very specific decks or situations, which makes them unreliable and not worth investing in.
Why it's hard to say definitively:
* The meta is constantly evolving: New cards are released regularly, changing the game's power balance and making some cards more or less useful.
* Deck building strategy: What is "useless" in one deck could be a valuable asset in another. A card might be considered weak by itself, but combined with the right support cards, it could become a powerful tool.
* Personal preference and playstyle: Some players might enjoy using "bad" cards for the challenge or novelty, even if they're not competitively viable.
Ultimately, whether a card is truly "useless" depends on the context and the player's perspective.