Modern Horizons - Booster BoxSet: Modern Horizons Sealed Release Date: 2019 06 14 The first magic set designed specifically for the modern format, modern horizons unleashes all new cards and strategies on the modern metagame. With a mix of reprints and new innovations, every one of the 540 cards in your modern horizons booster box is eligible your modern deck for the first time. In modern horizons, historic cycles get new additions and iconic characters make their first