Murinae, Queen of the Rats

Lifelink, peaceful (This creature can't attack. It deals damage to creatures in the form of -1/-0 counters.)
When Murinae, Queen of the Rats enters the battlefield create X 1/1 white Rat creature tokens with lifelink and peaceful. Where X is how many nontoken creatures you control.
-------------------------------------------------------------
Under her rule, rats learned to do something you never thought they would do, how to be peaceful.