Is Glamdring legal in Standard, Modern, and Commander?

Glamdring is legal in: Modern, Legacy, Vintage, Commander, Historic.

Glamdring

Q: What type of card is Glamdring?

Glamdring is a Legendary Artifact — Equipment. Its oracle text reads: "Equipped creature has first strike and gets +1/+0 for each instant and sorcery card in your graveyard. Whenever equipped creature deals combat damage to a player, you may cast an instant or sorcery spell from your hand with mana value less than or equal to that damage without paying its mana cost. Equip {3}"

Legendary Artifact — Equipment

Equipped creature has first strike and gets +1/+0 for each instant and sorcery card in your graveyard.

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

Equip