Wizards of the Coast will add 350 Magic: The Gathering cards to the Standard format with its Foundations set, changing the format forever. Here are the best spoilers that dropped at MagicCon Vegas to kick off the set’s preview season.

The Foundations set in MTG is an unprecedented design choice by WotC that will forever change the Standard format and Magic as we know it. Created as an entry point for new players, cards within the set are slated to remain Standard-legal through at least 2029. Around half of the cards in Foundations are new, while the other half are staple MTG reprints. Included in the reprints are staple Planeswalkers. The Foundations set will also feature a Limited format, along with chase cards through a variety of treatments. At the time of writing, WotC does not have plans to create a second Foundations set.