Necro-Knight

At the beginning of combat on your turn, black creatures you control gain +1/+1 until end of turn.
Dark Pact {b}{b}{b} - (Exile this card from your
graveyard: Create a token that's a copy of it, except
it's an Enchantment with no mana cost, power, or toughness. Dark Pact only as a sorcery.)