Evergrowing Goliath

Whenever Evergrowing Goliath is dealt damage,
if it's not enraged, put a +1/+1 counters on it
and it becomes enraged.
As long as Evergrowing Goliath is enraged it
can't attack or block and has "At the beginning
of each combat, this creature figths a creature
chosen at random. If that creature dies this turn
put a +1/+1 on Evergrowing Goliath. If there
are no other creatures on the battlefield,
sacrifice Evergrowing Goliath.".