Is Vengeful Regrowth legal in Standard, Modern, and Commander?

Vengeful Regrowth is legal in: Legacy, Vintage, Commander.

Vengeful Regrowth

Q: What type of card is Vengeful Regrowth?

Vengeful Regrowth is a Sorcery. Its oracle text reads: "Return up to three target land cards from your graveyard to the battlefield tapped. Create that many 4/2 green Plant Warrior creature tokens with reach. Flashback {6}{G}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)"

Sorcery

Return up to three target land cards from your graveyard to the battlefield tapped. Create that many 4/2 green Plant Warrior creature tokens with reach.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)