Is Hauntwoods Shrieker legal in Standard, Modern, and Commander?

Hauntwoods Shrieker is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Hauntwoods Shrieker

Q: What type of card is Hauntwoods Shrieker?

Hauntwoods Shrieker is a Creature — Beast Mutant. Its oracle text reads: "Whenever this creature attacks, manifest dread. (Look at the top two cards of your library. Put one onto the battlefield face down as a 2/2 creature and the other into your graveyard. Turn it face up any time for its mana cost if it's a creature card.) {1}{G}: Reveal target face-down permanent. If it's a creature card, you may turn it face up. Power/Toughness: 3/3"

Creature — Beast Mutant

Whenever this creature attacks, manifest dread. (Look at the top two cards of your library. Put one onto the battlefield face down as a 2/2 creature and the other into your graveyard. Turn it face up any time for its mana cost if it's a creature card.)

: Reveal target face-down permanent. If it's a creature card, you may turn it face up.

Power/Toughness: 3/3

Set Duskmourn: House of Horror

Rarity Mythic Rare

Mana Value 3

Artist John Tedrick

Collector # 182

Scryfall