Israth, Zombie Experimenter

When Israth, Zombie Experimenter enters
the battlefield, put X -1/-1 counters on
target creature, where X is the number of Zombies you control.
{1}{b/g},{t}: Put X -1/-1 counters on target creature, where X is the number of
Zombies you control.
Partner with Gorath, Zombie Rot Master