Professor's Letter across sets & languages(12)

• BREAK Starter Pack056/072JP—
• League & Championship Cards123/146—
• M Master Deck Build Box Power Style029/049JP—
• M Master Deck Build Box Speed Style031/049JP—
• SNP: Noivern BREAK Evolution Pack006/010JP—
• SNP: Raichu BREAK Evolution Pack007/010JP—
• XY - BREAKthrough146/162$0.99
• XY Trainer Kit: Sylveon & Noivern24/30$0.80
• XY Trainer Kit: Sylveon & Noivern28/30$1.03
• XY-By: Collection Y055/060JP$2.54
• smB: Premium Trainer Box007/018JP—
• smG: Ultra Sun & Ultra Moon Deck Build Boxes018/041JP—

Same name, other languages or different rules text. Same-language reprints already sit in Printings above.