Is Nephalia Academy legal in Standard, Modern, and Commander?

Nephalia Academy is legal in: Modern, Pioneer, Legacy, Vintage, Commander.

Nephalia Academy

Q: What type of card is Nephalia Academy?

Nephalia Academy is a Land. Its oracle text reads: "If a spell or ability an opponent controls causes you to discard a card, you may reveal that card and put it on top of your library instead of putting it anywhere else. {T}: Add {C}. *"May knowledge be our sanctuary." —Yora, academy researcher*"

Land

If a spell or ability an opponent controls causes you to discard a card, you may reveal that card and put it on top of your library instead of putting it anywhere else.

: Add .