I haven't done any PVP yet so my experiences only come from wild pet hunting but so far, I think that my Emperor Crab has to be my most overpowered pet by far. I renamed him "Tank" because the thing just never dies.
He has high health, high power and low speed. But because of his high power, Surge hits almost as hard as a regular attack and negates the low speed. By maintaining Renewing Mists and Shell Shield, he finishes entire fights with higher level pets and even magic or flying ones, on either full or close to full health.
I have pets that have one-shot combos, pets that devastate targets in a few rounds and pets that can heal through huge damage but nothing like this thing, with this combination. It might take ten extra rounds to kill your opponent, but I swear the thing is a beast. He's like the Randy Couture of pet battling.
How about you? What pets do you have that you've found to be overpowered?



