Theyre not going to be around for long, and once theyre gone the promotional cards will be highly sought after
Since there're (basically) very few rules about how to set up your play area, you could defend against it by spreading out all your cards as far apart as you wanted
2020 Mimikyu Holo #081: This card, from an earlier set but still a Halloween favorite, saw a PSA 10 copy sell for $67
I can't really imagine a scenario where someone would be using targeted removal on either Clues or Shards, but, at least in my meta, folks are more inclined to run VandalblastVandalblast than they are to run TranquilityTranquility, so Shards probably are better, but that's not really the point
Thats great ramping value there, though you're paying for that price with your wallet
The business is going great