Is Lazav, the Multifarious legal in Standard, Modern, and Commander?

Lazav, the Multifarious is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

What type of card is Lazav, the Multifarious?

Lazav, the Multifarious is a Legendary Creature — Shapeshifter. Its oracle text reads: "When Lazav enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.) {X}: Lazav becomes a copy of target creature card in your graveyard with mana value X, except its name is Lazav, the Multifarious, it's legendary in addition to its other types, and it has this ability."

Lazav, the Multifarious

Legendary Creature — Shapeshifter

When Lazav enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

: Lazav becomes a copy of target creature card in your graveyard with mana value X, except its name is Lazav, the Multifarious, it's legendary in addition to its other types, and it has this ability.