at Every Lvlup your pet will gain one point. but that's not for all pets same.. a pet can add more str.. an other one can add more con or more agi.. since leopard is wind he will add more agi.. but u can't have 2 leopards with same stats..

ex:

my fred lv 45 has 60wis. and 46 int.
Unless i moved 2 points from wis to con (at his lv 40, he had 56), he keep adding wis..

My alt's one at lv 36 has 53 wis and 50 int and no scroll used xD..

or:

At my wind parrot when it was lv 50 i moved 4 points from int to agi. now he is lv 57 and he added only 4 agi. in 7 lvls <.<..