At 9th level, you gain telepathy (100 feet) and can communicate with creatures with a swim speed or the aquatic or water types regardless of intelligence. You may cast suggestion on such creatures a number of times per day equal to your Charisma modifier. This ability is telepathic and does not require audible or visual components. At 15th level, once per day you can telepathically call and request a service from an aquatic, water, or swimming creature as if using demand or greater planar ally.