Turso is so ancient that everyone has forgotten his name and just calls him Kraken. Over all these centuries, he grew to gigantic proportions and could take the moon out of the skies if he wanted to.
Grasping Tentacles: will reach you even from the far end of the Sea-Ocean.
Thunderstorm of the seas, cyclopean horror of the oceans. His anger is probably because no one calls him by his name.