Is Commander Liara Portyr legal in Standard, Modern, and Commander?

Commander Liara Portyr is legal in: Legacy, Vintage, Commander.

What type of card is Commander Liara Portyr?

Commander Liara Portyr is a Legendary Creature — Human Soldier. Its oracle text reads: "Whenever you attack, spells you cast from exile this turn cost {X} less to cast, where X is the number of players being attacked. Exile the top X cards of your library. Until end of turn, you may cast spells from among those exiled cards."

Commander Liara Portyr

Legendary Creature — Human Soldier

Whenever you attack, spells you cast from exile this turn cost less to cast, where X is the number of players being attacked. Exile the top X cards of your library. Until end of turn, you may cast spells from among those exiled cards.