The product master set will contain 249 cards from across Magic 's entire history, a concept earlier seen in Eighth Edition. Each booster pack will contain 15 random cards from the master set. Cards from un-sets and the Reserved List are excluded. Nearly every card in Masters 25 features a watermark, representing its original expansion symbol. This treatment is even used for cards printed in Limited Edition (Alpha), Beta, and Unlimited. Un-watermarkable cards like planeswalker are excluded. The set features over 30 pieces of new Magic art!