Is Swift Reckoning legal in Standard, Modern, and Commander?

Swift Reckoning is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Swift Reckoning

Q: What type of card is Swift Reckoning?

Swift Reckoning is a Sorcery. Its oracle text reads: "Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, you may cast Swift Reckoning as though it had flash. (You may cast it any time you could cast an instant.)Destroy target tapped creature."

Sorcery

Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, you may cast Swift Reckoning as though it had flash. (You may cast it any time you could cast an instant.)<br>Destroy target tapped creature.

Set Pioneer Masters

Rarity Common

Artist Chris Rahn