Is Blade of the Oni legal in Standard, Modern, and Commander?

Blade of the Oni is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Blade of the Oni

Q: What type of card is Blade of the Oni?

Blade of the Oni is an Artifact Creature — Equipment Demon. Its oracle text reads: "Menace Equipped creature has base power and toughness 5/5, has menace, and is a black Demon in addition to its other colors and types. Reconfigure {2}{B}{B} ({2}{B}{B}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)"

Artifact Creature — Equipment Demon

Menace

Equipped creature has base power and toughness 5/5, has menace, and is a black Demon in addition to its other colors and types.

Reconfigure (: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)