Hour of Devastation Prerelease

At the prerelease, Magic players are able to open boosters of the new Hour of Devastation expansion a week before its release, and play with the cards before they’re even out. Players are provided with the boosters necessary to play as part of their admission. Each player builds his or her deck using the four boosters of Hour of Devastation and two boosters of Amonkhet provided. Prereleases use Regular REL and have a Planeswalker Points multiplier of x1.

https://www.redcapscorner.com/event/hour-of-devastation-prerelease-sunday-evening/