Davriel, Unmasked Savior

+1: Discard a card, then put a number of loyalty counter on Davriel equal to the number cards in your graveyard that share a type with it.
-3: Target player loses 2 life and discards two cards. You gain 2 life and draw two cards.
-5: Create a 0/0 black vampire enchantment creature token with lifelink and "This creature gets +2/+1 for each card type in your graveyard."