twilight masquerade booster display box Pokemon 1 Sleeved Pack : Toys & Games Discover Twilight Masquerade Pokémon, TCG Booster Display, Scarlet

Why are they so popular

Up to 2 monsters from your Deck/Extra Deck can be used, if they are non-Rock "Gem-Knight" monsters and you have "Gem-Knight Fusion" in your GY

At the same time, this sets you up for a huge attack with a double-striking creature

Its a nasty combo with mechanics like cascade and discover, allowing you to exile a big chunk of your deck and put many +1/+1 counters on Laelia

Its exclusivity and usefulness across every format in Magic leads to the most expensive token in the entire game

Sure, there were enough cards before now for you to make a typal deck around lizards, or bats, or frogs, or even rabbits