Is Breezekeeper legal in Standard, Modern, and Commander?

Breezekeeper is legal in: Legacy, Vintage, Commander, Pauper.

Breezekeeper

Q: What type of card is Breezekeeper?

Breezekeeper is a Creature — Djinn. Its oracle text reads: "FlyingPhasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.)"

Creature — Djinn

Flying<br>Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.)

Set Visions

Rarity Common

Artist Adam Rex