To me, it reads as a control oriented gamepiece, available in the CZ, that can produce virtual card advantage by merit of being a ticking time bomb
Lycanroc ex [F] Rock Throw: 40 damage
----------- Club Master ----------- Rick Deck: Wonders of Science Prizes: 6 Rewards: Laboratory Booster Pack (x2) & Science Medal Rick is fairly easy, considering he's a Club Master
Overall, top-tier decks can be enjoyable to play, but occasionally they go too far and make the game a nightmare for the opponent
For example, if playing a potion card right after playing a magic card gives an unfair advantage, you can make a rule that a player cant play them back to back
Graded Population Report: Shining Jirachi #43 Visualize the distrbution of grades in the chart