Chandra, Hope's Beacon (Borderless)

Whenever you cast an instant or sorcery spell, copy it. You may choose new targets for the copy. This ability triggers only once each turn. [+2]: Add two mana in any combination of colors. [+1]: Exile the top five cards of your library. Until the end of your next turn, you may cast an instant or sorcery spell from among those exiled cards. [-X]: Chandra, Hope's Beacon deals X damage to each of up to two targets.