Is Unshakable Tail legal in Standard, Modern, and Commander?

Unshakable Tail is legal in: Legacy, Vintage, Commander.

Unshakable Tail

Q: What type of card is Unshakable Tail?

Unshakable Tail is a Creature — Zombie Detective. Its oracle text reads: "When this creature enters and at the beginning of your upkeep, surveil 1. Whenever one or more creature cards are put into your graveyard from your library, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.") {2}, Sacrifice a Clue: Return this card from your graveyard to your hand. Power/Toughness: 3/2"

Creature — Zombie Detective

When this creature enters and at the beginning of your upkeep, surveil 1.

Whenever one or more creature cards are put into your graveyard from your library, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")

, Sacrifice a Clue: Return this card from your graveyard to your hand.

Power/Toughness: 3/2

Set Murders at Karlov Manor Commander

Rarity Rare

Mana Value 3

Artist Sean Murray

Collector # 29

Scryfall