Multiattack. The tiger makes one Pounce attack and uses Prowl.
Pounce. Melee Attack Roll: +5, reach 5 ft. Hit: 6 (1d6 + 3) Slashing damage. If the tiger had Advantage on the attack roll, the target takes an extra 3 (1d6) Slashing damage and, if it is Huge or smaller, has the Prone condition.
Prowl. The tiger moves up to half its Speed without provoking Opportunity Attack action. At the end of this movement, the tiger can take the Hide action.