Is Banshee of the Dread Choir legal in Standard, Modern, and Commander?

Banshee of the Dread Choir is legal in: Legacy, Vintage, Commander.

Banshee of the Dread Choir

Q: What type of card is Banshee of the Dread Choir?

Banshee of the Dread Choir is a Creature — Spirit. Its oracle text reads: "Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.) Whenever this creature deals combat damage to a player, that player discards a card. Power/Toughness: 4/4"

Creature — Spirit

Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

Whenever this creature deals combat damage to a player, that player discards a card.

Power/Toughness: 4/4

Set Commander Anthology

Rarity Uncommon

Mana Value 5

Artist Anthony Palumbo

Collector # 47

Scryfall