Commander Box League! (NEW!)

Offered during the Prerelease period, Commander Box League is a Sealed event in which players open a Play Booster box, build a 60-card Commander deck, and play throughout the Prerelease period.
NEW RULES:Decks may include multiple copies of cards opened from the Play Booster. Color identity rules in deck building are ignored. Note: commander color identity still applies when cards refer to color identity (for example, with Arcane Signet).
Prizes: Pack per win.
Promos:Palladium Myr,Singularity Rupture