False Appearance. While the sable remains motionless, it is indistinguishable form a normal statue.   Pack Tactics. The sable has advantage on an attack roll against a creature if at least one of the sable's allies is within 5 feet of the creature and the ally isn't incapacitated.   Surprise Attack. If the sable suprises a creature and hits it with an attack during the first round of combat, the target takes an extra 10 (3d6) 3d6 damage from the attack.