It ' s big , and close . Objects all objects create a gravity well , and the effects of that well are related to the size of the object and the distance to the object being effected . So , the moon pulls on the Earth . The Earth , being a rock , doesn ' t show much obvious response . However , the water on the surface of the Earth talking about the ocean here responds by being pulled back and forth . EditHere ' s a good ELI 5 explanationcause . htmHere ' s one that ' s more in depth , and also includes the importance of the Sun in creating tides <| sep |> Eh , since its kinda a pain to get one with Slush Rush You gotta use some move to identify the ability for each Sandshrew , guess I could just give ya a Rowlet . I ' m addin ' ya .