what bonus win the pet if i maximize his summon skill

Better stats such as atk/LP/defence etc
More and improved ''skills''

and my last question what diference have both pets ?

thanks for reading

the best way to sum up the two summons is
glass cannon and ram tank

the glass cannon is high damage output but extremely fragile. but dont worry, this is a ranged attacker so should stay out of melee range.

the ram tank is high defense, high lp, high damage aabsorption, etc but doesnt necessarily deal much damage himself.

^_^

damage is about same, tanking wise too.

Bird = energy defence + energy attack
Reptile = melee defence + melee attack

but the melee one has much higher lp and goes into melee range

thus is a better tank

but none od them attack on PVP, right?