Courtesy of the Magic the Gathering Twitch stream, Core Set 2021 is bringing a Legacy sideboard mainstay into Standard with the reprinting of Containment Priest.
Originally printed in Commander 2014, Containment Priest shut down many powerful strategies in Legacy like Dredge and Sneak and Show. The Human Cleric was reprinted in Ultimate Masters as well as an Amonkhet Invocation, but has never been legal in Standard or Modern.
Flash
If a nontoken creature would enter the battlefield and it wasn’t cast, exile it instead.
Not only is Containment Priest coming to Standard, but with new art in a stunning showcase frame treatment. With cards like Winota, Joiner of Forces and Lukka, Coppercoat Outcast making waves in Standard, Pioneer, and even Historic, Containment Priest is coming along at just the right time.