Nightmare lord, Dragrid

+2: Create a 1/1 goat horror with "When this creature dies, put a -1/-1 counter on target creature" Give target creature Scare until end of turn.
-1: Look at the top card of your library, if its a creature you may play it for 2 less than its CMC, if you do this creature is a horror in addition
-10: You may play any card from any graveyard without paying its mana cost until end of turn. If a card would go to the graveyard, exile it instead.