While I wouldn't go that far, it is very good in some decks
This is the case for all recent Pokmon sets, so it's doubly so for older, out of print ones like Crown Zenith, where we'd expect some scarcity even under pre-hype era conditions
Sources: Thick vs Thin (March 14th, 2014)- Shadowless Thick vs Thin vs Does It Matter? Debate
Generic typal support pieces like Herald's Horn and Cavern of Souls are perfect for these decks, whether that be ninjas, zombies, elves, or something less popular like avatars and rebels
Even better, 1 in 20 art cards opened are gold stamped with an artist's signature or Planeswalker symbol
In either case, the key to success lies in constructing a balanced deck of 60 cards, comprising Pokmon, Trainer, and Energy cards