Is Tegan Jovanka legal in Standard, Modern, and Commander?

Tegan Jovanka is legal in: Legacy, Vintage, Commander.

Tegan Jovanka

Q: What type of card is Tegan Jovanka?

Tegan Jovanka is a Legendary Creature — Human. Its oracle text reads: "Brave Heart — Whenever you attack, target attacking historic creature gets +1/+1 and gains indestructible until end of turn. (Artifacts, legendaries, and Sagas are historic.) Doctor's companion (You can have two commanders if the other is the Doctor.)"

Legendary Creature — Human

Brave Heart — Whenever you attack, target attacking historic creature gets +1/+1 and gains indestructible until end of turn. (Artifacts, legendaries, and Sagas are historic.)

Doctor's companion (You can have two commanders if the other is the Doctor.)

Set Doctor Who

Rarity Rare

Mana Value 3

Artist Aurore Folny

Collector # 28

Scryfall Gatherer