Keen Smell: The fox has advantage on Wisdom (Perception) checks that rely on smell. Pounce: If the fox 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 9 Strength saving throw or be knocked prone. If the target is prone, the fox can make one bite attack against it as a bonus action.
Bite: Melee Weapon Attack: +2 to hit, reach 5ft., one target. Hit: 1 (1d4-1) Piercing damage. Claw: Melee Weapon Attack: +2 to hit, reach 5ft., one target. Hit: 4 (1d4+2) Slashing damage.
Elude: The fox adds 2 to its AC against one opportunity attack that would hit it.