Is Hand of Vecna legal in Standard, Modern, and Commander?

Hand of Vecna is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Hand of Vecna

Q: What type of card is Hand of Vecna?

Hand of Vecna is a Legendary Artifact — Equipment. Its oracle text reads: "At the beginning of combat on your turn, equipped creature or a creature you control named Vecna gets +X/+X until end of turn, where X is the number of cards in your hand. Equip—Pay 1 life for each card in your hand. Equip {2}"

Legendary Artifact — Equipment

At the beginning of combat on your turn, equipped creature or a creature you control named Vecna gets +X/+X until end of turn, where X is the number of cards in your hand.

Equip—Pay 1 life for each card in your hand.

Equip