K9GL44N, Loner

Loner (You may sacrifice all other creatures you
control when this creature enters the battlefield.)
K9GL44N, Loner enters the battlefield with a
number of +1/+1 counters on it equal to the
combined power of all the creatures you sacrificed
as K9GL44N, Loner entered the battlefield.
K9GL44N, Loner also gains the sacrificed
creatures's abilities.