Is The Great Henge legal in Standard, Modern, and Commander?

The Great Henge is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

What type of card is The Great Henge?

The Great Henge is a Legendary Artifact. Its oracle text reads: "This spell costs {X} less to cast, where X is the greatest power among creatures you control. {T}: Add {G}{G}. You gain 2 life. Whenever a nontoken creature you control enters, put a +1/+1 counter on it and draw a card."