Is Armament of Nyx legal in Standard, Modern, and Commander?

Armament of Nyx is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper.

Armament of Nyx

Q: What type of card is Armament of Nyx?

Armament of Nyx is an Enchantment — Aura. Its oracle text reads: "Enchant creature Enchanted creature has double strike as long as it's an enchantment. Otherwise, prevent all damage that would be dealt by enchanted creature. (A creature with double strike deals both first-strike and regular combat damage.)"

Enchantment — Aura

Enchant creature

Enchanted creature has double strike as long as it's an enchantment. Otherwise, prevent all damage that would be dealt by enchanted creature. (A creature with double strike deals both first-strike and regular combat damage.)

Set Journey into Nyx

Rarity Common

Mana Value 3

Artist Slawomir Maniak

Collector # 4

Scryfall