My modest collection of dueling runes all purchased from the Broadway at the Beach location of MagiQuest
Front and back cards that came along with one of the runes. I’m not sure if I kept all of them or just this one but I’ll keep looking. It explains the lore attached and the purpose of the rune within dueling.
I believe that these runes contain rfid chips that can be placed upon the dueling station to activate spells.