Keen Smell. The panther has advantage on WIS (Perception) checks that rely on smell.
Pounce.If the panther moves at least 20 ft. straight toward a creature and then hits it with a claw attack on the same turn, that target must succeed on a DC 12 Strength saving throw or be knocked prone. If the target is prone, the panther can make one bite attack against it as a bonus action.
Bite. Melee Weapon Attack: +___ to hit, reach 5ft, one target. Hit: (1d6 +___) piercing damage.
Claws. Melee Weapon Attack: +___ to hit, reach 5ft, one target. Hit: (1d4 +___) slashing damage.