Is Osgir, the Reconstructor legal in Standard, Modern, and Commander?

Osgir, the Reconstructor is legal in: Legacy, Vintage, Commander.

What type of card is Osgir, the Reconstructor?

Osgir, the Reconstructor is a Legendary Creature — Giant Artificer. Its oracle text reads: "Vigilance {1}, Sacrifice an artifact: Target creature you control gets +2/+0 until end of turn. {X}, {T}, Exile an artifact card with mana value X from your graveyard: Create two tokens that are copies of the exiled card. Activate only as a sorcery."