Official answer for Rauther...
The rules as quoted by Anubis are correct. The totem may attack (conditions allowing) with both his tusk attack and his slap/sweep attack in the same action. The third attack option is a special attack that requires two actions to perform. It precludes the use of other tactics during its use. Thank you Wedge and Coil for enumerating the point so well. Enjoy and good luck.