Sibila, the Temptress

Infect (This creature deals damage to creatures in the
form of -1/-1 counters and to players in the form of
poison counters.)
{u}{b}{g},{t}: Choose a tapped creature with a -1/-1 counter on it. Until end of turn, when that
creature dies, return it to the battlefield under
your control for as long as you control Sibila, the Temptress.