Lethrblaka, Alagaësian Terror

Flying, shroud, infect, haste
When this card enters the battlefield, sacrifice
two creatures or give yourself poison counters
equal to its power.
{b}, Sacrifice a non token creature: Lethrblaka, Alagaesian Terror gains fear until end of turn.
{b}{4}{t}: Put a -1/-1 counter on each creature
target opponent controls, then proliferate.