Is Titanic Bulvox legal in Standard, Modern, and Commander?

Titanic Bulvox is legal in: Legacy, Vintage, Commander, Pauper.

What type of card is Titanic Bulvox?

Titanic Bulvox is a Creature — Beast. Its oracle text reads: "Trample Morph {4}{G}{G}{G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) *With natural laws abandoned, excess thrives.* Power/Toughness: 7/4"