You'll have to trim one of these cards and replace it with something a little less potent in order to keep your points at 10 or fewer
These are usually unauthorized knockoffs sold on marketplaces and novelty shops
For the last example, lets look at more of a format staple, something that saw play in a range of archetypes, The Wandering Emperor: TWE is only in 18k Commander decks, and while shes a player in some Pioneer decks, that hasnt kept her price high

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This means that if you play a land from the top of your library and it has a replacement effect that requires you to make a decision (such as that of Temple Garden), you must make that decision without knowing the next card of your library
Not impressive on its own, but remember that it can discard Special energy too