Is Devastating Mastery legal in Standard, Modern, and Commander?

Devastating Mastery is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

What type of card is Devastating Mastery?

Devastating Mastery is a Sorcery. Its oracle text reads: "You may pay {2}{W}{W} rather than pay this spell's mana cost. If the {2}{W}{W} cost was paid, an opponent chooses up to two nonland permanents they control and returns them to their owner's hand. Destroy all nonland permanents."