Grimlock is from the autobot.. He is been created by the autobot. He just following what the autobot said and he a bit stupid... but, he is strong and hard to defeat. He is successful creation and bring him into the Transformes movie and toys. I also get him from the ebay. It's cheaper than others seller or shops. I bought him for Rm 50.00. It's cheap!!! If you want to have him, you must at least buy it for Rm 70 and above.