Vellen Nightingale

+1: Place a Bounty counter on up to two target creatures, at the beginning your next upkeep destroy all creatures with Bounty counters.
-4: Put two 1/1 black Assassin creature tokens with deathtouch, onto the battlefield
-8: Target player gets an emblem with "During your upkeep you get a bounty counter, if you have three Bounty counters, you loose the game"