Is Weapon Rack legal in Standard, Modern, and Commander?

Weapon Rack is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

What type of card is Weapon Rack?

Weapon Rack is an Artifact. Its oracle text reads: "This artifact enters with three +1/+1 counters on it. {T}: Move a +1/+1 counter from this artifact onto target creature. Activate only as a sorcery. *No weapon stays on the rack for long in the Burning Yard.*"