161 Magic: The Gathering players from around the world will compete at the final Mythic Invitational of the 2021 season for a slice of the $250,000 prize pool and a spot for the Season Grand Final. The online tournament will run over the course of four days, with the founds starting at 11am CT on Twitch.tv/magic.

Players will compete via MTG Arena, and the format is Historic with open decklists for the tournament. Out of the 161 players, only the top 16 players will get an invitation to the 2020 Season Grand Final.
Here's the coverage team of the Mythic Invitational:
The last 2020 Mythic Invitational will take place at 11 am CT on September 10 to 13.