I don't think that's the case. It's also a tabletop game so the rules are all out there in public and not even inhumanely complex.
Even if WotC's servers go down, you could use the blockchain to prove ownership of a card for use in a live tournament. It's also possible for a third party to create their own server to implement the game, and then refer back to the blockchain for ownership.
As for non-official cards, I mean, yeah? That's the case with physical Magic cards too. Not even actual counterfeits have held the MTG secondary market back from astounding prices. Meanwhile non-NFT cards would be the equivalent of proxy cards - cards that aren't X, but both players agree to treat as X - which haven't been any more successful than counterfeits in holding Magic prices down.
I'm not claiming there would be greater faith in a blockchain than WotC, I'm just saying I see it as possible.
Even if all the WotC IP ends up with the most determined patent troll ever, the game itself could still be implemented.
As for the card art... who knows what the legal situation would end up being. But even if it's totally legally off limits, the ability to load custom art would render it practically moot anyway.
Even if WotC's servers go down, you could use the blockchain to prove ownership of a card for use in a live tournament. It's also possible for a third party to create their own server to implement the game, and then refer back to the blockchain for ownership.
As for non-official cards, I mean, yeah? That's the case with physical Magic cards too. Not even actual counterfeits have held the MTG secondary market back from astounding prices. Meanwhile non-NFT cards would be the equivalent of proxy cards - cards that aren't X, but both players agree to treat as X - which haven't been any more successful than counterfeits in holding Magic prices down.
I'm not claiming there would be greater faith in a blockchain than WotC, I'm just saying I see it as possible.