Tentacles

 As you become used to your tentacles, they become stronger and more co-ordinated. Your tentacles become a natural weapon which you can use to make unarmed strikes. If you hit with them, you deal psychic damage equal to 1d4 + your Intelligence modifier instead of the bludgeoning damage normal for an unarmed strike. When you attempt to grapple a creature, you can use your tentacles for it. If the grapple succeeds, the target must make an Intelligence saving throw. On a failed save, it is restrained as long as it’s grappled.