Is Mtenda Griffin legal in Standard, Modern, and Commander?

Mtenda Griffin is legal in: Legacy, Vintage, Commander.

Mtenda Griffin

Q: What type of card is Mtenda Griffin?

Mtenda Griffin is a Creature — Griffin. Its oracle text reads: "Flying{W}, {T}: Return Mtenda Griffin to its owner's hand and return target Griffin card from your graveyard to your hand. Activate only during your upkeep."

Creature — Griffin

Flying<br>, : Return Mtenda Griffin to its owner's hand and return target Griffin card from your graveyard to your hand. Activate only during your upkeep.