Shinshu, Canyon Walker

+1: Up to one target creature gets +2/-2 until your next turn.
-2: Shinshu deals 4 damage to target player or planeswalker unless that player or planeswalker's controller sacrifices a creature.
-6: Exile the top five cards of your library. Until end of turn, you may cast any spells exiled this way without paying their mana costs.