Summary: Brian is excited to brew in Pioneer, and he’s scouring sets to find sleepers. So what Core Sets were legal in Pioneer, and what do they hold for the format? Article: https://www.channelfireball.com/all-strategy/articles/the-core-set-cards-legal-in-pioneer-and-what-they-offer-for-deckbuilders/?_ga=2.176152164.735450133.1573100706-857503543.1571194400
