The reason it hasn’t changed at all in a hundred million years is that it’s apparently already a perfect life-form.
Stats
Attack: 90
Defense: 130
HP: 100
Sp. Attack: 45
Sp. Defense: 65
Speed: 55
Profile
Type: Water, Rock,
Ability: Swift Swim, Rock Head, Sturdy,
Egg: Water 1, Water 2,
Gender: 87.5:12.5
Weight: 23.4 kg
Height: 1 m
