Keen Smell. The tiger has advantage on Wisdom (Perception) checks that rely on smell.
Pounce. If the tiger moves at least 20 feet straight toward a creature and then hits it with a claw attack on the same turn, that target must succeed on a DC 14 Strenght saving throw or be knocked prone. If the target is prone, the lion can make one bite attack against it as a bonus action.
Bite. Melee Weapon Attack:  +6  to hit, reach 5 ft., one target. Hit: 10  1d10+5  piercing damage.
Claw. Melee Weapon Attack:  +5  to hit, reach 5 ft., one target. Hit: 12  2d6+5  slashing damage.