Is Phantom Steed legal in Standard, Modern, and Commander?

Phantom Steed is legal in: Legacy, Vintage, Commander.

Phantom Steed

Q: What type of card is Phantom Steed?

Phantom Steed is a Creature — Horse Illusion. Its oracle text reads: "Flash When this creature enters, exile another target creature you control until this creature leaves the battlefield. Whenever this creature attacks, create a tapped and attacking token that's a copy of the exiled card, except it's an Illusion in addition to its other types. Sacrifice that token at end of combat. Power/Toughness: 4/3"

Creature — Horse Illusion

Flash

When this creature enters, exile another target creature you control until this creature leaves the battlefield.

Whenever this creature attacks, create a tapped and attacking token that's a copy of the exiled card, except it's an Illusion in addition to its other types. Sacrifice that token at end of combat.

Power/Toughness: 4/3

Set Forgotten Realms Commander

Rarity Rare

Mana Value 4

Artist Brian Valeza

Collector # 18

Scryfall