Druid of unlife

Blood gamble— When Druid of unlife enters
the battlefield if your life total is even create a
2/2 black skeleton dog creature token, if your life
total is odd, summon two instead, they gain
lifelink and you lose 1 life.
{4}{b}{b}{t}: Exile Druid of unlife and return it to
the battlefield under your control with a +1/+1 counter on it.