GrumGar, Creator of Armies

Trample, protection from non-enchantments.
When this creature enters the battlefield, create
10 0/0 cat army creature tokens, then add 3
+1/+1 counters to all of them
{t}, sacrifice a cat army creature token. All other
cat armies get X +1/+1 counters on them, where
X is the amount of +1/+1 counters on the
sacrificed cat army.