Is Grist, the Hunger Tide legal in Standard, Modern, and Commander?

Grist, the Hunger Tide is legal in: Modern, Legacy, Vintage, Commander, Historic.

Grist, the Hunger Tide

Q: What type of card is Grist, the Hunger Tide?

Grist, the Hunger Tide is a Legendary Planeswalker — Grist. Its oracle text reads: "As long as Grist isn't on the battlefield, it's a 1/1 Insect creature in addition to its other types. +1: Create a 1/1 black and green Insect creature token, then mill a card. If an Insect card was milled this way, put a loyalty counter on Grist and repeat this process. −2: You may sacrifice a creature. When you do, destroy target creature or planeswalker. −5: Each opponent loses life equal to the number of creature cards in your graveyard."

Legendary Planeswalker — Grist

As long as Grist isn't on the battlefield, it's a 1/1 Insect creature in addition to its other types.

+1: Create a 1/1 black and green Insect creature token, then mill a card. If an Insect card was milled this way, put a loyalty counter on Grist and repeat this process.

−2: You may sacrifice a creature. When you do, destroy target creature or planeswalker.

−5: Each opponent loses life equal to the number of creature cards in your graveyard.

Set Duskmourn: House of Horror Commander

Rarity Mythic Rare

Mana Value 3

Artist Yongjae Choi

Collector # 220

Scryfall