Luther, The Blood Slayer

Lifelink, haste, trample
Other vampires get +1 +1 and lifelink.
At the begging of your upkeep you lose 1 life.
Whenever you lose life you may have each
opponent lose 1 life.
whenever a creature enters the battlefield you
may have one
opponent lose 2 life.
Discard a card: Luther, The Blood Slayer Gets
+1 +1 and flying until end of turn.