Blood Starved Beast

Blood Starved Beast deals combat damage to creatures in form of -1/-1 counters.
Bloodrally 2 - If this creature has been dealt 2 or
more damage before it deals combat damage this
turn, put a -1/-1 counter on target creature.
Whenever Blood Starved Beast dies, deal damage
to target player equal to all -1/-1 counters on all creatures on the battlefield.