Is Haughty Djinn legal in Standard, Modern, and Commander?

Haughty Djinn is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Haughty Djinn

Q: What type of card is Haughty Djinn?

Haughty Djinn is a Creature — Djinn. Its oracle text reads: "Flying Haughty Djinn's power is equal to the number of instant and sorcery cards in your graveyard. Instant and sorcery spells you cast cost {1} less to cast. *"I adore your outfit. It's so . . . rustic."* Power/Toughness: */4"