Sorin, Bane of Nephalia

: Whenever one or more Vampires deal combat damage to a player, that player discards a card.
+1: Target creature gets +1/+1 and gains lifelink until end of turn. If that creature is a Vampire, it also gains flying until end of turn.
-7: You get an emblem with "At the beginning of your upkeep, each opponent loses life equal to the number of cards in their graveyard."