The Mythic Edition includes 24 War of the Spark boosters. Eight of these booster are clearly marked as "Masterpiece Boosters" and contain one of eight foil Masterpieces in addition to their normal rare/mythic rare card.

Each unit contains all 8 Masterpiece cards:

Ugin, the Spirit Dragon

Gideon Blackblade

Jace, the Mind Sculptor

Tezzeret the Seeker

Garruk, Apex Predator

Nicol Bolas, Dragon-God

Nahiri, the Harbinger

Sarkhan Unbroken

The Masterpieces use the expansion symbol and code that were also used for Guilds of Ravnica Mythic Edition and Ravnica Allegiance Mythic Edition .