Seen in-store labelled 'Series 2'. The closest confirmed product is Panini's Super Mario Trading Card Collection (April 2022): 261 cards total — 252 numbered (180 base + 72 special foil) across ten named categories (Character, Close-up, Yoshi/Toad/Toadette, Enemy, Group, Item, Golden, Silver, Sport, Line Drawing) plus 9 Puzzle cards, plus 9 further unnumbered limited-edition cards. No Series 2 or second wave of that set is documented, so whether the shelf pack is this same 2022 set or a newer, undocumented release is unconfirmed. Empty for now — import a real, sourced checklist via import_catalog.py.
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