Complex sentence: Able to move underground by digging quickly, with one of his hand was replaced by a shovel while the other was a large claw, he was also equipped with two tentacle eyes, which allow him to spy from underground.
Split into simpler sentences: Able to move underground by digging quickly, with one of its hand replaced by a shovel while the other was a large claw. It was also equipped with two tentacle eyes, which allow it to spy from underground.