TKN4 can refer to several different card sets:
- OCG: Continuous Token Gifts Promotional Cards
- Yu-Gi-Oh! 5D's National Championship 2009 promotional cards
- Yu-Gi-Oh! Championship Series pre-registration cards
- Top Ranked COSSY Duelists promotional cards
- Battle City Tournament Kit
- Judge promotional cards
- Yu-Gi-Oh! Day promotional cards
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