Note: the creature can be a token
Loxi: I think this definitely is less generically useful than the other MDFC's, although I do think it still beats out a lot of the other tap lands in versatility just as a way to dig through your deck later in the game if you don't need mana
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Just want to echo the feedback that I definitely prefer things now that art cards were removed from Play Boosters and moved to Collector Boosters, they said, In fact, I feel there should be an even clearer line between Play Boosters and Collector Boosters. They then went on to advocate for the removal of Showcase cards from Play Boosters, owing to their potential negative effects on gameplay
Keening Stone Once your opponents have a decent pile of cards in their graveyards, Keening Stone becomes absolutely terrifying
Location synergies are great, but they're also just an inexpensive way to force an interaction with your opponent