Agravain, Iron Binder

Black Knight's Black Hand -
{t}: Tap target creature, put a stun counter on
it.
{u/b}{u/b}: Distribute 3 stun counters among
tapped creatures. Surveil 1.
{u/b}{u/b}, {t}, Exert Agravain, Iron Binder:
Destroy target tapped creature. Draw a card.