Similarly, is Oko banned in limited?
Oko, Thief of Crowns is banned. Once Upon a Time is banned.
Secondly, why is veil of summer banned? Wizards of the Coast has banned Veil of Summer in Magic: the Gathering's Pioneer format. Therefore, we are banning Veil of Summer to better allow for natural metagame forces to provide counterpressure against these strategies.”
Also know, when did Oko get banned?
Oko was initially banned from Brawl in early November 2019, then from Standard a few weeks later, got “suspended” from Historic and banned in Pioneer in December, and is now banned in Modern. All in all, this may have made Oko, Thief of Crowns the most quickly-banned card in Magic.
Is Oko better than Jace?
This doesn't necessarily mean that it will be more dominant than Jace, the Mind Sculptor at its peak, since power level is contextual, but in Modern, for example, where both coexist, Oko is the stronger card.