Vaal Hazak, Rotten Lord

When Vaal Hazak, Rotten Lord enters the Battlefield, choose one of the following;
•Choose one creature; that creature gains two -0/-1 counters.
•Choose two creatures; each creature gets one -0/-1 counter.

When a creature blocks Vaal Hazak, Rotten Lord, that creature gains one -0/-1 counter, before damage is counted, unless it's controller pays {1}.