Krav, the Lost

Trample, lifelink
Krav, the Lost enters the battlefield with
3 +1/+1 counters on it. If damage would be dealt
to Krav, the Lost, prevent that damage.
Remove a +1/+1 counter from Krav, the Lost.
{b},Sacrifice X creatures: Target player draws
X cards and gains X life. Put X +1/+1 counters
on Krav, the Lost.