Is Jiwari, the Earth Aflame legal in Standard, Modern, and Commander?

Jiwari, the Earth Aflame is legal in: Modern, Legacy, Vintage, Commander.

Jiwari, the Earth Aflame

Q: What type of card is Jiwari, the Earth Aflame?

Jiwari, the Earth Aflame is a Legendary Creature — Spirit. Its oracle text reads: "{X}{R}, {T}: Jiwari deals X damage to target creature without flying. Channel — {X}{R}{R}{R}, Discard this card: It deals X damage to each creature without flying. Power/Toughness: 3/3"