When March of the Afflicted enters, Amass Horrors 2. (To amass Horrors 2 put 2 +1/+1 counters on an Army you control. It’s also a Horror. If you don’t control an Army, create a 0/0 black Horror Army creature token first.)

Whenever you attack, you may pay {BP}. If you do, quicken 1. (Choose up to one target card with counters on it, then add or remove a counter of a kind already there.)