Is Dauthi Voidwalker legal in Standard, Modern, and Commander?

Dauthi Voidwalker is legal in: Modern, Legacy, Vintage, Commander, Historic.

Dauthi Voidwalker

Q: What type of card is Dauthi Voidwalker?

Dauthi Voidwalker is a Creature — Dauthi Rogue. Its oracle text reads: "Shadow (This creature can block or be blocked by only creatures with shadow.) If a card would be put into an opponent's graveyard from anywhere, instead exile it with a void counter on it. {T}, Sacrifice this creature: Choose an exiled card an opponent owns with a void counter on it. You may play it this turn without paying its mana cost."