Some pet trainers have pets that have ridiculously

Some pet trainers have pets that have ridiculously strong attacks, the RNV5k has that nice little Defend skill that can allow him to survive something that'd kill nearly anything else (that thunder serpent pet the master trainer has at the end of the quest line for example).
or world of Warcraft
That along with how he can get back up when killed the first time gives him a lot of a Turtle feel. His damage output ain't that great, but he's got the power to last. And if you're real lucky, you might even pull off a Repair in mid-battle, though it takes a lot of luck or planning to do that.