Samukai, Skeleton Lord

{p/b} can be paid with either {b} or 2 life
{p/w} can be paid with either {w} or 2 life
When Samukai, Skeleton Lord enters the battlefield amass 2 (put 2 +1/+1 counters on
target army you control, if you don't control an
army create a 0/0 colorless skeleton army first)
Samukai, Skeleton Lord's toughness is equal to
the number of skeletons you control