Sabretooth, The War-Torn

Power Up (Whenever this creature deals combat
damage to a player, if it does not have a +1/+1
counter on it, put a +1/+1 counter on it.)
Creatures you control with +1/+1 counters on
them have menace.
Whenever a creature an opponent controls dies,
put a +1/+1 counter on Sabretooth.