Commander Liara Portyr
From Commander Legends: Battle for Baldur's Gate set
Commander Liara Portyr
Legendary Creature — Human Soldier
5/3
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.