Is Tayam, Luminous Enigma legal in Standard, Modern, and Commander?

Tayam, Luminous Enigma is legal in: Legacy, Vintage, Commander.

What type of card is Tayam, Luminous Enigma?

Tayam, Luminous Enigma is a Legendary Creature — Nightmare Beast. Its oracle text reads: "Each other creature you control enters with an additional vigilance counter on it. {3}, Remove three counters from among creatures you control: Mill three cards, then return a permanent card with mana value 3 or less from your graveyard to the battlefield."

Tayam, Luminous Enigma

Legendary Creature — Nightmare Beast

Each other creature you control enters with an additional vigilance counter on it.

, Remove three counters from among creatures you control: Mill three cards, then return a permanent card with mana value 3 or less from your graveyard to the battlefield.