Is Disciple of the Sun legal in Standard, Modern, and Commander?

Disciple of the Sun is legal in: Modern, Legacy, Vintage, Commander, Pauper, Historic.

Disciple of the Sun

Q: What type of card is Disciple of the Sun?

Disciple of the Sun is a Creature — Human Cleric. Its oracle text reads: "Lifelink When this creature enters, return target permanent card with mana value 3 or less from your graveyard to your hand. *Heart of a titan, faith as bright as the dawn.* Power/Toughness: 3/3"