Jarina, Harvester of the Lost

Whenever a creature dies, place a +1/+1 counter
on Jarina, Harvester of the Lost.
{2}{b}{g}{t}: Sacrifice a creature; Choose one
of the following, where X is the sacrificed
creatures toughness: Draw X cards, then discard
half that many cards rounded up; Place X +1/+1
counters on target creature you control; Place
X -1/-1 counters on target creature you don't
control.