Is Pit Keeper legal in Standard, Modern, and Commander?

Pit Keeper is legal in: Modern, Legacy, Vintage, Commander, Pauper.

Pit Keeper

Q: What type of card is Pit Keeper?

Pit Keeper is a Creature — Human Wizard. Its oracle text reads: "When this creature enters, if you have four or more creature cards in your graveyard, you may return target creature card from your graveyard to your hand."

Creature — Human Wizard

When this creature enters, if you have four or more creature cards in your graveyard, you may return target creature card from your graveyard to your hand.

Set Time Spiral Remastered

Rarity Common

Mana Value 2

Artist Anthony S. Waters

Collector # 130

Scryfall Gatherer