Is Olivia, Mobilized for War legal in Standard, Modern, and Commander?

Olivia, Mobilized for War is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Olivia, Mobilized for War

Q: What type of card is Olivia, Mobilized for War?

Olivia, Mobilized for War is a Legendary Creature — Vampire Knight. Its oracle text reads: "Flying Whenever another creature you control enters, you may discard a card. If you do, put a +1/+1 counter on that creature, it gains haste until end of turn, and it becomes a Vampire in addition to its other types. Power/Toughness: 3/3"

Legendary Creature — Vampire Knight

Flying

Whenever another creature you control enters, you may discard a card. If you do, put a +1/+1 counter on that creature, it gains haste until end of turn, and it becomes a Vampire in addition to its other types.

Power/Toughness: 3/3

Set Shadows over Innistrad

Rarity Mythic Rare

Mana Value 3

Artist Eric Deschamps

Collector # 248

Scryfall