Is Zimone, Mystery Unraveler legal in Standard, Modern, and Commander?

Zimone, Mystery Unraveler is legal in: Legacy, Vintage, Commander.

Zimone, Mystery Unraveler

Q: What type of card is Zimone, Mystery Unraveler?

Zimone, Mystery Unraveler is a Legendary Creature — Human Wizard. Its oracle text reads: "Landfall — Whenever a land you control enters, manifest dread if this is the first time this ability has resolved this turn. Otherwise, you may turn a permanent you control face up. (To 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.)"

Legendary Creature — Human Wizard

Landfall — Whenever a land you control enters, manifest dread if this is the first time this ability has resolved this turn. Otherwise, you may turn a permanent you control face up. (To 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.)

Set Duskmourn: House of Horror Commander

Rarity Mythic Rare

Mana Value 4

Artist Mila Pesic

Collector # 8

Scryfall Gatherer