Is Toph, Hardheaded Teacher legal in Standard, Modern, and Commander?

Toph, Hardheaded Teacher is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Toph, Hardheaded Teacher

Q: What type of card is Toph, Hardheaded Teacher?

Toph, Hardheaded Teacher is a Legendary Creature — Human Warrior Ally. Its oracle text reads: "When Toph enters, you may discard a card. If you do, return target instant or sorcery card from your graveyard to your hand. Whenever you cast a spell, earthbend 1. If that spell is a Lesson, put an additional +1/+1 counter on that land. (Target land you control becomes a 0/0 creature with haste that's still a land. Put a +1/+1 counter on it. When it dies or is exiled, return it to the battlefield tapped.)"

Legendary Creature — Human Warrior Ally

When Toph enters, you may discard a card. If you do, return target instant or sorcery card from your graveyard to your hand.

Whenever you cast a spell, earthbend 1. If that spell is a Lesson, put an additional +1/+1 counter on that land. (Target land you control becomes a 0/0 creature with haste that's still a land. Put a +1/+1 counter on it. When it dies or is exiled, return it to the battlefield tapped.)

Set Avatar: The Last Airbender

Rarity Rare

Mana Value 4

Artist Ruwen Liu

Collector # 246

Scryfall