Oboro, Vengeful Lancer

Double-Strike, Vigilance
Rook- If you control a Vampire Lord, Oboro, Vengeful Lancer gets +3/+0 and Trample.
When Oboro, Vengeful Lancer enters the battlefield, or deals combat damage to a player, deal 5 damage to target creature. If a creature dies this way, put a +1/+1 counter on Oboro, Vengeful Lancer.