Simic Superiority

When Simic Superiority enters the battlefield,
put two +1/+1 counters on each creature you
control that has 3 or more creature types.
Whenever a creature enters the battlefield under
your control, if it has 3 or more creature types, it
enters the battlefield with two additional +1/+1 counters on it.
Creatures you control are oozes in addition to
their other types.