Is Blinding Powder legal in Standard, Modern, and Commander?

Blinding Powder is legal in: Modern, Legacy, Vintage, Commander.

Blinding Powder

Q: What type of card is Blinding Powder?

Blinding Powder is an Artifact — Equipment. Its oracle text reads: "Equipped creature has "Unattach Blinding Powder: Prevent all combat damage that would be dealt to this creature this turn." Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)"