More than thirty years after the Limited Edition Alpha set of Magic: The Gathering was released, the original artworks of the game are not all owned by Wizards of the Coast, the parent company of the game.
In 1995, Wizards of the Coast came out with a compilation expansion featuring cards from previously-released Magic: The Gathering expansions. It didn't go over well.
For one year, Deathtouch was such a broken ability that Wizards of the Coast had to drastically alter it so that it could work as intended.
More than a decade ago, Wizards of the Coast ended one of its longest-running Magic: The Gathering formats.
There was a creature in Magic: The Gathering that appeared on a handful of cards in only one expansion, then never was seen again.