Is Bronze Sword legal in Standard, Modern, and Commander?

Bronze Sword is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Bronze Sword

Q: What type of card is Bronze Sword?

Bronze Sword is an Artifact — Equipment. Its oracle text reads: "Equipped creature gets +2/+0. Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.) *Every strike of the smith's hammer infuses a sword with the determination of its creator.*"