your opponent must return 1 card of that type from their hand to the Deck, otherwise discard 2 random cards from your opponent's hand
The flavor's definitely there in some capacity, just ignore the logistics of how the concept of True Identity can exist as a disguised creature on the battlefield
On the other, its G-Max One Blow almost guarantees a KO by avoiding all resistances on your opponent's Pokmon
Counter decks have had a ton of support over the years (including in Streets of New Capenna, where the precon was released alongside), and Bedecked Brokers has many of the best counter cards
By the way, in the anime, he was beaten by a non-OCG card, a monster baton, but even if he didn't go out of his way to use Shooting Star, if he had used it earlier, he would easily have won