Some of the rarest cards throughout the Lorcana TCG are promo cards that have a very limited print, but also some of the most common or also promo cards, so it all depends on print quantity
While not a foolproof means of dealing with that card, you can bet that this character card alone is going to be a major draw for many players looking to help deal with those pesky song cards from both Ruby/Amethyst decks and Amber/Steel
Much like The First Chapters Amber/Amethyst starter deck, this deck is built to go wide and dump your hand on the board, which will lead to quick wins often against the slower, more combo-focused Ruby/Sapphire one
Simply put if you dont play this card, youll need to have a plan to deal with it
But the first copy of either is usually no detriment to your deck the Map in particular is so mana efficient that Id always prefer it to adding extra basics in my splash color
That probably limits his upside quite a bit and, as a result, if he sees play, it's probably as a 1 or 2-of in select decks