Cheetah

Keen Vision. The cheetah has advantage on Wisdom (Perception) checks that rely on vision.

Pounce. If the cheetah 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 13 Strength saving throw or be knocked prone. If the target is prone, the cheetah can make one bite attack against it as a bonus action.

Born Runner. The cheetah can take the dash action as a bonus action. *This cannot be used in conjunction with the Sprinter feature. If used with the Pounce feature the extra bite attack is unavailable. 

Sprinter.(Recharge 5-6) On its turn the cheetah can use its reaction to take the dash action. If the cheetah takes the dash action in this way it can move three times its movement speed followed by its pounce.

Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 7 (1d6 + 4) piercing damage.

Claw. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 6 (1d4+ 4) slashing damage.