Is Buster Sword legal in Standard, Modern, and Commander?

Buster Sword is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Buster Sword

Q: What type of card is Buster Sword?

Buster Sword is an Artifact — Equipment. Its oracle text reads: "Equipped creature gets +3/+2. Whenever equipped creature deals combat damage to a player, draw a card, then you may cast a spell from your hand with mana value less than or equal to that damage without paying its mana cost. Equip {2}"

Artifact — Equipment

$35.57 ↗20 similarCommander, Modern

Equipped creature gets +3/+2.

Whenever equipped creature deals combat damage to a player, draw a card, then you may cast a spell from your hand with mana value less than or equal to that damage without paying its mana cost.

Equip