From Return to Ravnica forward
Fetches are banned.
So they are giving this a lot of time to work and a lot of push.The format will be available to build and test on Magic Online starting October 23, with premier and qualifying events starting soon thereafter. On the paper side, the format will be available for high-level play soon! Pioneer will be one of the formats at the first Players Tour Series of 2020 occurring February 1–2 and February 8–9. Additionally, the Players Tour Finals the weekend of April 25, 2020 will also utilize the format. Then, starting March 21, some tabletop qualifying events for Players Tours will start using Pioneer.