Is Dralnu, Lich Lord legal in Standard, Modern, and Commander?

Dralnu, Lich Lord is legal in: Modern, Legacy, Vintage, Commander.

Dralnu, Lich Lord

Q: What type of card is Dralnu, Lich Lord?

Dralnu, Lich Lord is a Legendary Creature — Zombie Wizard. Its oracle text reads: "If damage would be dealt to Dralnu, sacrifice that many permanents instead. {T}: Target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.) Power/Toughness: 3/3"

Legendary Creature — Zombie Wizard

If damage would be dealt to Dralnu, sacrifice that many permanents instead.

: Target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.)