Is Citywatch Sphinx legal in Standard, Modern, and Commander?

Citywatch Sphinx is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Citywatch Sphinx

Q: What type of card is Citywatch Sphinx?

Citywatch Sphinx is a Creature — Sphinx. Its oracle text reads: "Flying When this creature dies, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)"

Creature — Sphinx

Flying

When this creature dies, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Set Guilds of Ravnica

Rarity Uncommon

Mana Value 6

Artist Magali Villeneuve

Collector # 33

Scryfall Gatherer