Vollis, Lolthite Disciple

When Vollis, Lolthite Disciple enters the battlefield,
create a 3/3 black/green Spider creature token with
menace and reach under your control.
Sacrifice a spider: target creature gets -X/-X until
the end of turn, where X is the sacrificed spider's
power.
"Webmother be praised, I have found my quarry."