Keen Smell. The lion has advantage on Wisdom (Perception) checks that rely on smell.

Pack Tactics. The lion has advantage on an attack roll against a creature if at least one of the lion’s allies is within 5 feet of the creature and the ally isn’t incapacitated.

Pounce. If the lion moves at least 20 feet straight toward a creature and then hits it with a claw attack on the same turn, the target must succeed on a DC 15 Strength saving throw or be knocked prone. If the target is prone, the lion can make one claw attack against it as a bonus action.

Running Leap. With a 10-foot running start, the lion can long jump up to 30 feet.

Multiattack. The lion makes two attacks: one with its bite and one with its claws.

Bite. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 10 (1d10 + 5) piercing damage. 

Claws. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 14 (2d8+5) slashing damage.