Unstoppable Brigade

At the beginning of your upkeep, Brigade 2. (Put
two +1/+1 counters on a Brigade you control. If
you don't control one, create a 0/0 red and white
Brigade creature token with defender first.)
Brigade creature tokens you control may block
an additional creature for each +1/+1 counter
on them.
"Shield formation, men! Don't let a single
one through!"