Rivae Nightblaze

+1: Rivae deals 1 damage to target creature, that creature can't be blocked this turn.
-1: Exile the top card of target player's library. You may play that card for as long as it remains exiled.
-3: Rivae deals 3 damage to each creature and all other planeswalkers, if a creature dealt damage this way would die this turn exile it instead.