Announcement Date: July 13, 2020
https://magic.wizards.com/en/articles/archive/news/july-13-2020-banned-and-restricted-announcement-2020-07-13
(https://magic.wizards.com/en/articles/archive/news/july-13-2020-banned-and-restricted-announcement-2020-07-13)
Historic
[card]Agent of Treachery[/card] is banned (from suspended)
[card]Winota, Joiner of Forces[/card] is banned (from suspended)
[card]Fires of Invention[/card] is banned (from suspended)
[card]Nexus of Fate[/card] is banned
[card]Burning-Tree Emissary[/card] is suspended
Pioneer
[card]Oath of Nissa[/card] is unbanned.
Modern
[card]Arcum's Astrolabe[/card] is banned.
Pauper
[card]Expedition Map[/card] is banned.
[card]Mystic Sanctuary[/card] is banned.
Tabletop Effective Date: July 13, 2020
Magic Online Effective Date: July 13, 2020
MTG Arena effective date: July 16, 2020