The Strongest Sea Battle Transformers!

As the captain, Grindor possessed a body far more massive than those of the other five companions. Grindor's vehicle form resembled an Armored Turtle. He had been created for naval warfare. Together with four others of his kind, he would form the strongest Sea Battle Transformers—Deep Sea Demon! But unlike other combiners, Sea Battle Frenzy was an anomaly. Other than Captain Grindor, who was an irreplaceable individual, the other five components were all mass-produced Transformers! That gave Deep Sea Demon astonishing endurance.